Add test for suggestion to borrow unsized function parameters

This is a regression test for #82820.

This test case is included in more general tests, but I think the error
regressed because there were a bunch of other diagnostic changes in the
test that obscured this regression.

Hopefully, having a test specific to the suggestion, and running rustfix
for the test, will prevent this error from regressing in the future.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/test/ui/suggestions/unsized-function-parameter.fixed b/src/test/ui/suggestions/unsized-function-parameter.fixed
new file mode 100644
index 00000000000..18e93cb96cd
--- /dev/null
+++ b/src/test/ui/suggestions/unsized-function-parameter.fixed
@@ -0,0 +1,23 @@
+// run-rustfix
+
+#![allow(dead_code, unused_variables)]
+
+fn foo1(bar: &str) {}
+//~^ ERROR the size for values of type `str` cannot be known at compilation time
+//~| HELP the trait `Sized` is not implemented for `str`
+//~| HELP unsized fn params are gated as an unstable feature
+//~| HELP function arguments must have a statically known size, borrowed types always have a known size
+
+fn foo2(_bar: &str) {}
+//~^ ERROR the size for values of type `str` cannot be known at compilation time
+//~| HELP the trait `Sized` is not implemented for `str`
+//~| HELP unsized fn params are gated as an unstable feature
+//~| HELP function arguments must have a statically known size, borrowed types always have a known size
+
+fn foo3(_: &str) {}
+//~^ ERROR the size for values of type `str` cannot be known at compilation time
+//~| HELP the trait `Sized` is not implemented for `str`
+//~| HELP unsized fn params are gated as an unstable feature
+//~| HELP function arguments must have a statically known size, borrowed types always have a known size
+
+fn main() {}