[clang-tools-extra] Add support for renaming objc methods, even those with multiple selector pieces (PR #76466)

[David Goldman via cfe-commits]

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@@ -1029,5 +1172,151 @@ size_t renameRangeAdjustmentCost(ArrayRef<Range> Indexed, ArrayRef<Range> Lexed,
   return Cost;
 }
 
+static bool isMatchingSelectorName(const syntax::Token &Cur,
+                                   const syntax::Token &Next,
+                                   const SourceManager &SM,
+                                   llvm::StringRef SelectorName) {
+  if (SelectorName.empty())
+    return Cur.kind() == tok::colon;
+  return Cur.kind() == tok::identifier && Next.kind() == tok::colon &&
+         Cur.text(SM) == SelectorName &&
+         // We require the selector name and : to be contiguous.
+         // e.g. support `foo:` but not `foo :`.
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DavidGoldman wrote:

Done.

https://github.com/llvm/llvm-project/pull/76466