chore: fix typos

tests/rustdoc/type-alias/deeply-nested-112515.rs

@@ -1,6 +1,6 @@
 // Regression test for <https://github.com/rust-lang/rust/issues/112515>.
 // It's to ensure that this code doesn't have infinite loop in rustdoc when
-// trying to retrive type alias implementations.
+// trying to retrieve type alias implementations.
 
 // ignore-tidy-linelength
 

tests/ui/duplicate/multiple-types-with-same-name-and-derive.rs

@@ -1,6 +1,6 @@
 // Here, there are two types with the same name. One of these has a `derive` annotation, but in the
 // expansion these `impl`s are associated to the the *other* type. There is a suggestion to remove
-// unneded type parameters, but because we're now point at a type with no type parameters, the
+// unneeded type parameters, but because we're now point at a type with no type parameters, the
 // suggestion would suggest removing code from an empty span, which would ICE in nightly.
 //
 // issue: rust-lang/rust#108748

tests/ui/incoherent-inherent-impls/no-other-unrelated-errors.rs

@@ -1,4 +1,4 @@
-// E0116 caused other unrelated errors, so check no unrelated errors are emmitted.
+// E0116 caused other unrelated errors, so check no unrelated errors are emitted.
 
 fn main() {
     let x = "hello";

tests/ui/indexing/indexing-spans-caller-location.rs

@@ -20,7 +20,7 @@ impl std::ops::Index<usize> for A {
     type Output = ();
 
     fn index(&self, _idx: usize) -> &() {
-        // Use the relative number to make it resistent to header changes.
+        // Use the relative number to make it resistant to header changes.
         assert_eq!(caller_line(), self.prev_line + 2);
         &()
     }

tests/ui/inference/need_type_info/issue-107745-avoid-expr-from-macro-expansion.rs

@@ -2,7 +2,7 @@
 
 // Regression test for #107745.
 // Previously need_type_info::update_infer_source will consider expressions originating from
-// macro expressions as candiate "previous sources". This unfortunately can mean that
+// macro expressions as candidate "previous sources". This unfortunately can mean that
 // for macros expansions such as `format!()` internal implementation details can leak, such as:
 //
 // ```