1 files changed, 44 insertions, 11 deletions
diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs
index 1662db36d..069217165 100644
--- a/compiler/rustc_parse/src/errors.rs
+++ b/compiler/rustc_parse/src/errors.rs
@@ -888,12 +888,12 @@ pub(crate) struct InvalidMetaItem {
 
 #[derive(Subdiagnostic)]
 #[suggestion(
-    parse_sugg_escape_to_use_as_identifier,
+    parse_sugg_escape_identifier,
     style = "verbose",
     applicability = "maybe-incorrect",
     code = "r#"
 )]
-pub(crate) struct SuggEscapeToUseAsIdentifier {
+pub(crate) struct SuggEscapeIdentifier {
     #[primary_span]
     pub span: Span,
     pub ident_name: String,
@@ -937,8 +937,9 @@ impl ExpectedIdentifierFound {
 pub(crate) struct ExpectedIdentifier {
     pub span: Span,
     pub token: Token,
-    pub suggest_raw: Option<SuggEscapeToUseAsIdentifier>,
+    pub suggest_raw: Option<SuggEscapeIdentifier>,
     pub suggest_remove_comma: Option<SuggRemoveComma>,
+    pub help_cannot_start_number: Option<HelpIdentifierStartsWithNumber>,
 }
 
 impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for ExpectedIdentifier {
@@ -975,10 +976,21 @@ impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for ExpectedIdentifier {
             sugg.add_to_diagnostic(&mut diag);
         }
 
+        if let Some(help) = self.help_cannot_start_number {
+            help.add_to_diagnostic(&mut diag);
+        }
+
         diag
     }
 }
 
+#[derive(Subdiagnostic)]
+#[help(parse_invalid_identifier_with_leading_number)]
+pub(crate) struct HelpIdentifierStartsWithNumber {
+    #[primary_span]
+    pub num_span: Span,
+}
+
 pub(crate) struct ExpectedSemi {
     pub span: Span,
     pub token: Token,
@@ -1208,14 +1220,6 @@ pub(crate) struct SelfParamNotFirst {
 }
 
 #[derive(Diagnostic)]
-#[diag(parse_invalid_identifier_with_leading_number)]
-pub(crate) struct InvalidIdentiferStartsWithNumber {
-    #[primary_span]
-    #[label]
-    pub span: Span,
-}
-
-#[derive(Diagnostic)]
 #[diag(parse_const_generic_without_braces)]
 pub(crate) struct ConstGenericWithoutBraces {
     #[primary_span]
@@ -2299,3 +2303,32 @@ impl HelpUseLatestEdition {
         }
     }
 }
+
+#[derive(Diagnostic)]
+#[diag(parse_box_syntax_removed)]
+pub struct BoxSyntaxRemoved<'a> {
+    #[primary_span]
+    #[suggestion(
+        code = "Box::new({code})",
+        applicability = "machine-applicable",
+        style = "verbose"
+    )]
+    pub span: Span,
+    pub code: &'a str,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_bad_return_type_notation_output)]
+pub(crate) struct BadReturnTypeNotationOutput {
+    #[primary_span]
+    #[suggestion(code = "", applicability = "maybe-incorrect")]
+    pub span: Span,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_bad_return_type_notation_dotdot)]
+pub(crate) struct BadReturnTypeNotationDotDot {
+    #[primary_span]
+    #[suggestion(code = "", applicability = "maybe-incorrect")]
+    pub span: Span,
+}