Rollup merge of rust-lang#124948 - blyxyas:remove-repeated-words, r=compiler-errors

chore: Remove repeated words (extension of rust-lang#124924)

When I saw rust-lang#124924 I thought "Hey, I'm sure that there are far more than just two typos of this nature in the codebase". So here's some more typo-fixing.

Some found with regex, some found with a spellchecker. Every single one manually reviewed by me (along with hundreds of false negatives by the tools)

Author: matthiaskrgr

clippy_lints/src/methods/needless_collect.rs

@@ -127,7 +127,7 @@ pub(super) fn check<'tcx>(
     }
 }
 
-/// checks for for collecting into a (generic) method or function argument
+/// checks for collecting into a (generic) method or function argument
 /// taking an `IntoIterator`
 fn check_collect_into_intoiterator<'tcx>(
     cx: &LateContext<'tcx>,

tests/ui/ptr_arg.rs

@@ -282,7 +282,7 @@ mod issue_9218 {
         todo!()
     }
 
-    // These two's return types don't use use 'a so it's not okay
+    // These two's return types don't use 'a so it's not okay
     fn cow_bad_ret_ty_1<'a>(input: &'a Cow<'a, str>) -> &'static str {
         //~^ ERROR: using a reference to `Cow` is not recommended
         todo!()