[clang-tools-extra] [clangd] Add designator hints for parenthesis aggregate initialization (PR #170642)

[Mythreya Kuricheti via cfe-commits]

================
@@ -1822,6 +1821,63 @@ TEST(DesignatorHints, NoCrash) {
                         ExpectedHint{".b=", "b"});
 }
 
+TEST(DesignatorHints, BasicParenInit) {
----------------
MythreyaK wrote:

you're right, sorry missed that :see_no_evil:, thanks for the edit!

https://github.com/llvm/llvm-project/pull/170642