[clang] [clang] Correct FixIt ranges for unused capture warnings (PR #141148)

[Shafik Yaghmour via cfe-commits]

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@@ -972,6 +972,12 @@ class Sema final : public SemaBase {
   /// Calls \c Lexer::getLocForEndOfToken()
   SourceLocation getLocForEndOfToken(SourceLocation Loc, unsigned Offset = 0);
 
+  /// Calls \c Lexer::findNextToken() to find the next token, and if the
+  /// locations of both ends of the token can be resolved it return that
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shafik wrote:

I am curious when would this not happen `both ends of the token can be resolved`? I guess when we have invalid code? Do we test that?

https://github.com/llvm/llvm-project/pull/141148