Merging upstream version 1.71.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

9 files changed, 35 insertions, 430 deletions

diff --git a/compiler/rustc_macros/Cargo.toml b/compiler/rustc_macros/Cargo.toml
index 745983e7e..1f1201b00 100644
--- a/compiler/rustc_macros/Cargo.toml
+++ b/compiler/rustc_macros/Cargo.toml
@@ -7,11 +7,7 @@ edition = "2021"
 proc-macro = true
 
 [dependencies]
-annotate-snippets = "0.9"
-fluent-bundle = "0.15.2"
-fluent-syntax = "0.11"
 synstructure = "0.13.0"
 syn = { version = "2", features = ["full"] }
 proc-macro2 = "1"
 quote = "1"
-unic-langid = { version = "0.9.0", features = ["macros"] }
diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs
index 427c82c41..cd6e36874 100644
--- a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs
+++ b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs
@@ -9,7 +9,7 @@ use crate::diagnostics::utils::{
     FieldInnerTy, FieldMap, HasFieldMap, SetOnce, SpannedOption, SubdiagnosticKind,
 };
 use proc_macro2::{Ident, Span, TokenStream};
-use quote::{format_ident, quote};
+use quote::{format_ident, quote, quote_spanned};
 use syn::Token;
 use syn::{parse_quote, spanned::Spanned, Attribute, Meta, Path, Type};
 use synstructure::{BindingInfo, Structure, VariantInfo};
@@ -251,7 +251,8 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> {
         let diag = &self.parent.diag;
 
         let field = binding_info.ast();
-        let field_binding = &binding_info.binding;
+        let mut field_binding = binding_info.binding.clone();
+        field_binding.set_span(field.ty.span());
 
         let ident = field.ident.as_ref().unwrap();
         let ident = format_ident!("{}", ident); // strip `r#` prefix, if present
@@ -284,9 +285,9 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> {
                     name == "primary_span" && matches!(inner_ty, FieldInnerTy::Vec(_));
                 let (binding, needs_destructure) = if needs_clone {
                     // `primary_span` can accept a `Vec<Span>` so don't destructure that.
-                    (quote! { #field_binding.clone() }, false)
+                    (quote_spanned! {inner_ty.span()=> #field_binding.clone() }, false)
                 } else {
-                    (quote! { #field_binding }, true)
+                    (quote_spanned! {inner_ty.span()=> #field_binding }, true)
                 };
 
                 let generated_code = self
diff --git a/compiler/rustc_macros/src/diagnostics/fluent.rs b/compiler/rustc_macros/src/diagnostics/fluent.rs
deleted file mode 100644
index 607d51f56..000000000
--- a/compiler/rustc_macros/src/diagnostics/fluent.rs
+++ /dev/null
@@ -1,336 +0,0 @@
-use annotate_snippets::{
-    display_list::DisplayList,
-    snippet::{Annotation, AnnotationType, Slice, Snippet, SourceAnnotation},
-};
-use fluent_bundle::{FluentBundle, FluentError, FluentResource};
-use fluent_syntax::{
-    ast::{
-        Attribute, Entry, Expression, Identifier, InlineExpression, Message, Pattern,
-        PatternElement,
-    },
-    parser::ParserError,
-};
-use proc_macro::{Diagnostic, Level, Span};
-use proc_macro2::TokenStream;
-use quote::quote;
-use std::{
-    collections::{HashMap, HashSet},
-    fs::read_to_string,
-    path::{Path, PathBuf},
-};
-use syn::{parse_macro_input, Ident, LitStr};
-use unic_langid::langid;
-
-/// Helper function for returning an absolute path for macro-invocation relative file paths.
-///
-/// If the input is already absolute, then the input is returned. If the input is not absolute,
-/// then it is appended to the directory containing the source file with this macro invocation.
-fn invocation_relative_path_to_absolute(span: Span, path: &str) -> PathBuf {
-    let path = Path::new(path);
-    if path.is_absolute() {
-        path.to_path_buf()
-    } else {
-        // `/a/b/c/foo/bar.rs` contains the current macro invocation
-        let mut source_file_path = span.source_file().path();
-        // `/a/b/c/foo/`
-        source_file_path.pop();
-        // `/a/b/c/foo/../locales/en-US/example.ftl`
-        source_file_path.push(path);
-        source_file_path
-    }
-}
-
-/// Tokens to be returned when the macro cannot proceed.
-fn failed(crate_name: &Ident) -> proc_macro::TokenStream {
-    quote! {
-        pub static DEFAULT_LOCALE_RESOURCE: &'static str = "";
-
-        #[allow(non_upper_case_globals)]
-        #[doc(hidden)]
-        pub(crate) mod fluent_generated {
-            pub mod #crate_name {
-            }
-
-            pub mod _subdiag {
-                pub const help: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("help"));
-                pub const note: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("note"));
-                pub const warn: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("warn"));
-                pub const label: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("label"));
-                pub const suggestion: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("suggestion"));
-            }
-        }
-    }
-    .into()
-}
-
-/// See [rustc_macros::fluent_messages].
-pub(crate) fn fluent_messages(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
-    let crate_name = std::env::var("CARGO_PKG_NAME")
-        // If `CARGO_PKG_NAME` is missing, then we're probably running in a test, so use
-        // `no_crate`.
-        .unwrap_or_else(|_| "no_crate".to_string())
-        .replace("rustc_", "");
-
-    // Cannot iterate over individual messages in a bundle, so do that using the
-    // `FluentResource` instead. Construct a bundle anyway to find out if there are conflicting
-    // messages in the resources.
-    let mut bundle = FluentBundle::new(vec![langid!("en-US")]);
-
-    // Set of Fluent attribute names already output, to avoid duplicate type errors - any given
-    // constant created for a given attribute is the same.
-    let mut previous_attrs = HashSet::new();
-
-    let resource_str = parse_macro_input!(input as LitStr);
-    let resource_span = resource_str.span().unwrap();
-    let relative_ftl_path = resource_str.value();
-    let absolute_ftl_path = invocation_relative_path_to_absolute(resource_span, &relative_ftl_path);
-
-    let crate_name = Ident::new(&crate_name, resource_str.span());
-
-    // As this macro also outputs an `include_str!` for this file, the macro will always be
-    // re-executed when the file changes.
-    let resource_contents = match read_to_string(absolute_ftl_path) {
-        Ok(resource_contents) => resource_contents,
-        Err(e) => {
-            Diagnostic::spanned(
-                resource_span,
-                Level::Error,
-                format!("could not open Fluent resource: {e}"),
-            )
-            .emit();
-            return failed(&crate_name);
-        }
-    };
-    let mut bad = false;
-    for esc in ["\\n", "\\\"", "\\'"] {
-        for _ in resource_contents.matches(esc) {
-            bad = true;
-            Diagnostic::spanned(resource_span, Level::Error, format!("invalid escape `{esc}` in Fluent resource"))
-                .note("Fluent does not interpret these escape sequences (<https://projectfluent.org/fluent/guide/special.html>)")
-                .emit();
-        }
-    }
-    if bad {
-        return failed(&crate_name);
-    }
-
-    let resource = match FluentResource::try_new(resource_contents) {
-        Ok(resource) => resource,
-        Err((this, errs)) => {
-            Diagnostic::spanned(resource_span, Level::Error, "could not parse Fluent resource")
-                .help("see additional errors emitted")
-                .emit();
-            for ParserError { pos, slice: _, kind } in errs {
-                let mut err = kind.to_string();
-                // Entirely unnecessary string modification so that the error message starts
-                // with a lowercase as rustc errors do.
-                err.replace_range(0..1, &err.chars().next().unwrap().to_lowercase().to_string());
-
-                let line_starts: Vec<usize> = std::iter::once(0)
-                    .chain(
-                        this.source()
-                            .char_indices()
-                            .filter_map(|(i, c)| Some(i + 1).filter(|_| c == '\n')),
-                    )
-                    .collect();
-                let line_start = line_starts
-                    .iter()
-                    .enumerate()
-                    .map(|(line, idx)| (line + 1, idx))
-                    .filter(|(_, idx)| **idx <= pos.start)
-                    .last()
-                    .unwrap()
-                    .0;
-
-                let snippet = Snippet {
-                    title: Some(Annotation {
-                        label: Some(&err),
-                        id: None,
-                        annotation_type: AnnotationType::Error,
-                    }),
-                    footer: vec![],
-                    slices: vec![Slice {
-                        source: this.source(),
-                        line_start,
-                        origin: Some(&relative_ftl_path),
-                        fold: true,
-                        annotations: vec![SourceAnnotation {
-                            label: "",
-                            annotation_type: AnnotationType::Error,
-                            range: (pos.start, pos.end - 1),
-                        }],
-                    }],
-                    opt: Default::default(),
-                };
-                let dl = DisplayList::from(snippet);
-                eprintln!("{dl}\n");
-            }
-
-            return failed(&crate_name);
-        }
-    };
-
-    let mut constants = TokenStream::new();
-    let mut previous_defns = HashMap::new();
-    let mut message_refs = Vec::new();
-    for entry in resource.entries() {
-        if let Entry::Message(Message { id: Identifier { name }, attributes, value, .. }) = entry {
-            let _ = previous_defns.entry(name.to_string()).or_insert(resource_span);
-            if name.contains('-') {
-                Diagnostic::spanned(
-                    resource_span,
-                    Level::Error,
-                    format!("name `{name}` contains a '-' character"),
-                )
-                .help("replace any '-'s with '_'s")
-                .emit();
-            }
-
-            if let Some(Pattern { elements }) = value {
-                for elt in elements {
-                    if let PatternElement::Placeable {
-                        expression:
-                            Expression::Inline(InlineExpression::MessageReference { id, .. }),
-                    } = elt
-                    {
-                        message_refs.push((id.name, *name));
-                    }
-                }
-            }
-
-            // `typeck_foo_bar` => `foo_bar` (in `typeck.ftl`)
-            // `const_eval_baz` => `baz` (in `const_eval.ftl`)
-            // `const-eval-hyphen-having` => `hyphen_having` (in `const_eval.ftl`)
-            // The last case we error about above, but we want to fall back gracefully
-            // so that only the error is being emitted and not also one about the macro
-            // failing.
-            let crate_prefix = format!("{crate_name}_");
-
-            let snake_name = name.replace('-', "_");
-            if !snake_name.starts_with(&crate_prefix) {
-                Diagnostic::spanned(
-                    resource_span,
-                    Level::Error,
-                    format!("name `{name}` does not start with the crate name"),
-                )
-                .help(format!(
-                    "prepend `{crate_prefix}` to the slug name: `{crate_prefix}{snake_name}`"
-                ))
-                .emit();
-            };
-            let snake_name = Ident::new(&snake_name, resource_str.span());
-
-            if !previous_attrs.insert(snake_name.clone()) {
-                continue;
-            }
-
-            let msg = format!("Constant referring to Fluent message `{name}` from `{crate_name}`");
-            constants.extend(quote! {
-                #[doc = #msg]
-                pub const #snake_name: crate::DiagnosticMessage =
-                    crate::DiagnosticMessage::FluentIdentifier(
-                        std::borrow::Cow::Borrowed(#name),
-                        None
-                    );
-            });
-
-            for Attribute { id: Identifier { name: attr_name }, .. } in attributes {
-                let snake_name = Ident::new(
-                    &format!("{}{}", &crate_prefix, &attr_name.replace('-', "_")),
-                    resource_str.span(),
-                );
-                if !previous_attrs.insert(snake_name.clone()) {
-                    continue;
-                }
-
-                if attr_name.contains('-') {
-                    Diagnostic::spanned(
-                        resource_span,
-                        Level::Error,
-                        format!("attribute `{attr_name}` contains a '-' character"),
-                    )
-                    .help("replace any '-'s with '_'s")
-                    .emit();
-                }
-
-                let msg = format!(
-                    "Constant referring to Fluent message `{name}.{attr_name}` from `{crate_name}`"
-                );
-                constants.extend(quote! {
-                    #[doc = #msg]
-                    pub const #snake_name: crate::SubdiagnosticMessage =
-                        crate::SubdiagnosticMessage::FluentAttr(
-                            std::borrow::Cow::Borrowed(#attr_name)
-                        );
-                });
-            }
-        }
-    }
-
-    for (mref, name) in message_refs.into_iter() {
-        if !previous_defns.contains_key(mref) {
-            Diagnostic::spanned(
-                resource_span,
-                Level::Error,
-                format!("referenced message `{mref}` does not exist (in message `{name}`)"),
-            )
-            .help(&format!("you may have meant to use a variable reference (`{{${mref}}}`)"))
-            .emit();
-        }
-    }
-
-    if let Err(errs) = bundle.add_resource(resource) {
-        for e in errs {
-            match e {
-                FluentError::Overriding { kind, id } => {
-                    Diagnostic::spanned(
-                        resource_span,
-                        Level::Error,
-                        format!("overrides existing {kind}: `{id}`"),
-                    )
-                    .emit();
-                }
-                FluentError::ResolverError(_) | FluentError::ParserError(_) => unreachable!(),
-            }
-        }
-    }
-
-    quote! {
-        /// Raw content of Fluent resource for this crate, generated by `fluent_messages` macro,
-        /// imported by `rustc_driver` to include all crates' resources in one bundle.
-        pub static DEFAULT_LOCALE_RESOURCE: &'static str = include_str!(#relative_ftl_path);
-
-        #[allow(non_upper_case_globals)]
-        #[doc(hidden)]
-        /// Auto-generated constants for type-checked references to Fluent messages.
-        pub(crate) mod fluent_generated {
-            #constants
-
-            /// Constants expected to exist by the diagnostic derive macros to use as default Fluent
-            /// identifiers for different subdiagnostic kinds.
-            pub mod _subdiag {
-                /// Default for `#[help]`
-                pub const help: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("help"));
-                /// Default for `#[note]`
-                pub const note: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("note"));
-                /// Default for `#[warn]`
-                pub const warn: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("warn"));
-                /// Default for `#[label]`
-                pub const label: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("label"));
-                /// Default for `#[suggestion]`
-                pub const suggestion: crate::SubdiagnosticMessage =
-                    crate::SubdiagnosticMessage::FluentAttr(std::borrow::Cow::Borrowed("suggestion"));
-            }
-        }
-    }
-    .into()
-}
diff --git a/compiler/rustc_macros/src/diagnostics/mod.rs b/compiler/rustc_macros/src/diagnostics/mod.rs
index 78df0cd1d..a536eb3b0 100644
--- a/compiler/rustc_macros/src/diagnostics/mod.rs
+++ b/compiler/rustc_macros/src/diagnostics/mod.rs
@@ -1,12 +1,10 @@
 mod diagnostic;
 mod diagnostic_builder;
 mod error;
-mod fluent;
 mod subdiagnostic;
 mod utils;
 
 use diagnostic::{DiagnosticDerive, LintDiagnosticDerive};
-pub(crate) use fluent::fluent_messages;
 use proc_macro2::TokenStream;
 use quote::format_ident;
 use subdiagnostic::SubdiagnosticDeriveBuilder;
@@ -142,7 +140,7 @@ pub fn lint_diagnostic_derive(s: Structure<'_>) -> TokenStream {
 /// ```fluent
 /// parser_expected_identifier = expected identifier
 ///
-/// parser_expected_identifier-found = expected identifier, found {$found}
+/// parser_expected_identifier_found = expected identifier, found {$found}
 ///
 /// parser_raw_identifier = escape `{$ident}` to use it as an identifier
 /// ```
diff --git a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs
index 62d49c1c6..374ba1a45 100644
--- a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs
+++ b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs
@@ -4,17 +4,16 @@ use crate::diagnostics::error::{
     invalid_attr, span_err, throw_invalid_attr, throw_span_err, DiagnosticDeriveError,
 };
 use crate::diagnostics::utils::{
-    build_field_mapping, is_doc_comment, new_code_ident,
-    report_error_if_not_applied_to_applicability, report_error_if_not_applied_to_span, FieldInfo,
-    FieldInnerTy, FieldMap, HasFieldMap, SetOnce, SpannedOption, SubdiagnosticKind,
+    build_field_mapping, build_suggestion_code, is_doc_comment, new_code_ident,
+    report_error_if_not_applied_to_applicability, report_error_if_not_applied_to_span,
+    should_generate_set_arg, AllowMultipleAlternatives, FieldInfo, FieldInnerTy, FieldMap,
+    HasFieldMap, SetOnce, SpannedOption, SubdiagnosticKind,
 };
 use proc_macro2::TokenStream;
 use quote::{format_ident, quote};
 use syn::{spanned::Spanned, Attribute, Meta, MetaList, Path};
 use synstructure::{BindingInfo, Structure, VariantInfo};
 
-use super::utils::{build_suggestion_code, AllowMultipleAlternatives};
-
 /// The central struct for constructing the `add_to_diagnostic` method from an annotated struct.
 pub(crate) struct SubdiagnosticDeriveBuilder {
     diag: syn::Ident,
@@ -210,19 +209,20 @@ impl<'parent, 'a> SubdiagnosticDeriveVariantBuilder<'parent, 'a> {
     }
 
     /// Generates the code for a field with no attributes.
-    fn generate_field_set_arg(&mut self, binding: &BindingInfo<'_>) -> TokenStream {
-        let ast = binding.ast();
-        assert_eq!(ast.attrs.len(), 0, "field with attribute used as diagnostic arg");
-
+    fn generate_field_set_arg(&mut self, binding_info: &BindingInfo<'_>) -> TokenStream {
         let diag = &self.parent.diag;
-        let ident = ast.ident.as_ref().unwrap();
-        // strip `r#` prefix, if present
-        let ident = format_ident!("{}", ident);
+
+        let field = binding_info.ast();
+        let mut field_binding = binding_info.binding.clone();
+        field_binding.set_span(field.ty.span());
+
+        let ident = field.ident.as_ref().unwrap();
+        let ident = format_ident!("{}", ident); // strip `r#` prefix, if present
 
         quote! {
             #diag.set_arg(
                 stringify!(#ident),
-                #binding
+                #field_binding
             );
         }
     }
@@ -399,7 +399,8 @@ impl<'parent, 'a> SubdiagnosticDeriveVariantBuilder<'parent, 'a> {
         clone_suggestion_code: bool,
     ) -> Result<TokenStream, DiagnosticDeriveError> {
         let span = attr.span().unwrap();
-        let ident = &list.path.segments.last().unwrap().ident;
+        let mut ident = list.path.segments.last().unwrap().ident.clone();
+        ident.set_span(info.ty.span());
         let name = ident.to_string();
         let name = name.as_str();
 
@@ -498,7 +499,7 @@ impl<'parent, 'a> SubdiagnosticDeriveVariantBuilder<'parent, 'a> {
             .variant
             .bindings()
             .iter()
-            .filter(|binding| !binding.ast().attrs.is_empty())
+            .filter(|binding| !should_generate_set_arg(binding.ast()))
             .map(|binding| self.generate_field_attr_code(binding, kind_stats))
             .collect();
 
@@ -580,7 +581,7 @@ impl<'parent, 'a> SubdiagnosticDeriveVariantBuilder<'parent, 'a> {
             .variant
             .bindings()
             .iter()
-            .filter(|binding| binding.ast().attrs.is_empty())
+            .filter(|binding| should_generate_set_arg(binding.ast()))
             .map(|binding| self.generate_field_set_arg(binding))
             .collect();
 
diff --git a/compiler/rustc_macros/src/diagnostics/utils.rs b/compiler/rustc_macros/src/diagnostics/utils.rs
index b9b09c662..e2434981f 100644
--- a/compiler/rustc_macros/src/diagnostics/utils.rs
+++ b/compiler/rustc_macros/src/diagnostics/utils.rs
@@ -207,6 +207,12 @@ impl<'ty> FieldInnerTy<'ty> {
             FieldInnerTy::Plain(..) => quote! { #inner },
         }
     }
+
+    pub fn span(&self) -> proc_macro2::Span {
+        match self {
+            FieldInnerTy::Option(ty) | FieldInnerTy::Vec(ty) | FieldInnerTy::Plain(ty) => ty.span(),
+        }
+    }
 }
 
 /// Field information passed to the builder. Deliberately omits attrs to discourage the
@@ -851,7 +857,8 @@ impl quote::IdentFragment for SubdiagnosticKind {
 /// Returns `true` if `field` should generate a `set_arg` call rather than any other diagnostic
 /// call (like `span_label`).
 pub(super) fn should_generate_set_arg(field: &Field) -> bool {
-    field.attrs.is_empty()
+    // Perhaps this should be an exhaustive list...
+    field.attrs.iter().all(|attr| is_doc_comment(attr))
 }
 
 pub(super) fn is_doc_comment(attr: &Attribute) -> bool {
diff --git a/compiler/rustc_macros/src/lib.rs b/compiler/rustc_macros/src/lib.rs
index 737500cc2..904f8eb57 100644
--- a/compiler/rustc_macros/src/lib.rs
+++ b/compiler/rustc_macros/src/lib.rs
@@ -54,60 +54,6 @@ pub fn newtype_index(input: TokenStream) -> TokenStream {
     newtype::newtype(input)
 }
 
-/// Implements the `fluent_messages` macro, which performs compile-time validation of the
-/// compiler's Fluent resources (i.e. that the resources parse and don't multiply define the same
-/// messages) and generates constants that make using those messages in diagnostics more ergonomic.
-///
-/// For example, given the following invocation of the macro..
-///
-/// ```ignore (rust)
-/// fluent_messages! { "./typeck.ftl" }
-/// ```
-/// ..where `typeck.ftl` has the following contents..
-///
-/// ```fluent
-/// typeck_field_multiply_specified_in_initializer =
-///     field `{$ident}` specified more than once
-///     .label = used more than once
-///     .label_previous_use = first use of `{$ident}`
-/// ```
-/// ...then the macro parse the Fluent resource, emitting a diagnostic if it fails to do so, and
-/// will generate the following code:
-///
-/// ```ignore (rust)
-/// pub static DEFAULT_LOCALE_RESOURCE: &'static [&'static str] = include_str!("./typeck.ftl");
-///
-/// mod fluent_generated {
-///     mod typeck {
-///         pub const field_multiply_specified_in_initializer: DiagnosticMessage =
-///             DiagnosticMessage::fluent("typeck_field_multiply_specified_in_initializer");
-///         pub const field_multiply_specified_in_initializer_label_previous_use: DiagnosticMessage =
-///             DiagnosticMessage::fluent_attr(
-///                 "typeck_field_multiply_specified_in_initializer",
-///                 "previous_use_label"
-///             );
-///     }
-/// }
-/// ```
-/// When emitting a diagnostic, the generated constants can be used as follows:
-///
-/// ```ignore (rust)
-/// let mut err = sess.struct_span_err(
-///     span,
-///     fluent::typeck::field_multiply_specified_in_initializer
-/// );
-/// err.span_default_label(span);
-/// err.span_label(
-///     previous_use_span,
-///     fluent::typeck::field_multiply_specified_in_initializer_label_previous_use
-/// );
-/// err.emit();
-/// ```
-#[proc_macro]
-pub fn fluent_messages(input: TokenStream) -> TokenStream {
-    diagnostics::fluent_messages(input)
-}
-
 decl_derive!([HashStable, attributes(stable_hasher)] => hash_stable::hash_stable_derive);
 decl_derive!(
     [HashStable_Generic, attributes(stable_hasher)] =>
diff --git a/compiler/rustc_macros/src/newtype.rs b/compiler/rustc_macros/src/newtype.rs
index 78a6f7488..415a89b0f 100644
--- a/compiler/rustc_macros/src/newtype.rs
+++ b/compiler/rustc_macros/src/newtype.rs
@@ -254,7 +254,7 @@ impl Parse for Newtype {
                 }
             }
 
-            impl rustc_index::vec::Idx for #name {
+            impl rustc_index::Idx for #name {
                 #[inline]
                 fn new(value: usize) -> Self {
                     Self::from_usize(value)
diff --git a/compiler/rustc_macros/src/query.rs b/compiler/rustc_macros/src/query.rs
index f85ba3800..d0d41c614 100644
--- a/compiler/rustc_macros/src/query.rs
+++ b/compiler/rustc_macros/src/query.rs
@@ -112,9 +112,6 @@ struct QueryModifiers {
     /// Use a separate query provider for local and extern crates
     separate_provide_extern: Option<Ident>,
 
-    /// Always remap the ParamEnv's constness before hashing.
-    remap_env_constness: Option<Ident>,
-
     /// Generate a `feed` method to set the query's value from another query.
     feedable: Option<Ident>,
 }
@@ -130,7 +127,6 @@ fn parse_query_modifiers(input: ParseStream<'_>) -> Result<QueryModifiers> {
     let mut eval_always = None;
     let mut depth_limit = None;
     let mut separate_provide_extern = None;
-    let mut remap_env_constness = None;
     let mut feedable = None;
 
     while !input.is_empty() {
@@ -189,8 +185,6 @@ fn parse_query_modifiers(input: ParseStream<'_>) -> Result<QueryModifiers> {
             try_insert!(depth_limit = modifier);
         } else if modifier == "separate_provide_extern" {
             try_insert!(separate_provide_extern = modifier);
-        } else if modifier == "remap_env_constness" {
-            try_insert!(remap_env_constness = modifier);
         } else if modifier == "feedable" {
             try_insert!(feedable = modifier);
         } else {
@@ -211,7 +205,6 @@ fn parse_query_modifiers(input: ParseStream<'_>) -> Result<QueryModifiers> {
         eval_always,
         depth_limit,
         separate_provide_extern,
-        remap_env_constness,
         feedable,
     })
 }
@@ -260,7 +253,7 @@ fn add_query_desc_cached_impl(
         quote! {
             #[allow(unused_variables, unused_braces, rustc::pass_by_value)]
             #[inline]
-            pub fn #name<'tcx>(#tcx: TyCtxt<'tcx>, #key: &crate::ty::query::query_keys::#name<'tcx>) -> bool {
+            pub fn #name<'tcx>(#tcx: TyCtxt<'tcx>, #key: &crate::query::queries::#name::Key<'tcx>) -> bool {
                 #expr
             }
         }
@@ -269,7 +262,7 @@ fn add_query_desc_cached_impl(
             // we're taking `key` by reference, but some rustc types usually prefer being passed by value
             #[allow(rustc::pass_by_value)]
             #[inline]
-            pub fn #name<'tcx>(_: TyCtxt<'tcx>, _: &crate::ty::query::query_keys::#name<'tcx>) -> bool {
+            pub fn #name<'tcx>(_: TyCtxt<'tcx>, _: &crate::query::queries::#name::Key<'tcx>) -> bool {
                 false
             }
         }
@@ -280,7 +273,7 @@ fn add_query_desc_cached_impl(
 
     let desc = quote! {
         #[allow(unused_variables)]
-        pub fn #name<'tcx>(tcx: TyCtxt<'tcx>, key: crate::ty::query::query_keys::#name<'tcx>) -> String {
+        pub fn #name<'tcx>(tcx: TyCtxt<'tcx>, key: crate::query::queries::#name::Key<'tcx>) -> String {
             let (#tcx, #key) = (tcx, key);
             ::rustc_middle::ty::print::with_no_trimmed_paths!(
                 format!(#desc)
@@ -332,7 +325,6 @@ pub fn rustc_queries(input: TokenStream) -> TokenStream {
             eval_always,
             depth_limit,
             separate_provide_extern,
-            remap_env_constness,
         );
 
         if modifiers.cache.is_some() {