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-rw-r--r--src/test/ui/duplicate/duplicate-parameter.rs5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/test/ui/duplicate/duplicate-parameter.rs b/src/test/ui/duplicate/duplicate-parameter.rs
new file mode 100644
index 000000000..e5b21bbcd
--- /dev/null
+++ b/src/test/ui/duplicate/duplicate-parameter.rs
@@ -0,0 +1,5 @@
+fn f(a: isize, a: isize) {}
+//~^ ERROR identifier `a` is bound more than once in this parameter list
+
+fn main() {
+}