[clang-tools-extra] [clangd] Use `SymbolName` to represent Objective-C selectors (PR #82061)

[David Goldman via cfe-commits]

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@@ -35,6 +35,56 @@ struct RenameOptions {
   bool RenameVirtual = true;
 };
 
+/// A name of a symbol that should be renamed.
+///
+/// Symbol's name can be composed of multiple strings. For example, Objective-C
+/// methods can contain multiple argument labels:
+///
+/// \code
+/// - (void) myMethodNamePiece: (int)x anotherNamePieces:(int)y;
+/// //       ^~ string 0 ~~~~~         ^~ string 1 ~~~~~
+/// \endcode
+class RenameSymbolName {
+  llvm::SmallVector<std::string, 1> NamePieces;
+
+public:
+  RenameSymbolName();
+
+  /// Create a new \c SymbolName with the specified pieces.
+  explicit RenameSymbolName(ArrayRef<std::string> NamePieces);
+
+  explicit RenameSymbolName(const DeclarationName &Name);
+
+  // /// Creates a \c SymbolName from the given string representation.
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DavidGoldman wrote:

This is accidentally double commented, also looks like L63 SymbolName(...) is extraneous.

https://github.com/llvm/llvm-project/pull/82061