[clang-format] Fix a bug in annotating braces (llvm#144095)

Stop looking for function decls after hitting a BK_BracedInit brace.

Fixes llvm#144057.

Author: owenca

clang/lib/Format/TokenAnnotator.cpp

@@ -3978,7 +3978,7 @@ void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) const {
   for (auto *Tok = FirstNonComment && FirstNonComment->isNot(tok::kw_using)
                        ? FirstNonComment->Next
                        : nullptr;
-       Tok; Tok = Tok->Next) {
+       Tok && Tok->isNot(BK_BracedInit); Tok = Tok->Next) {
     if (Tok->is(TT_StartOfName))
       SeenName = true;
     if (Tok->Previous->EndsCppAttributeGroup)

clang/unittests/Format/TokenAnnotatorTest.cpp

@@ -3754,6 +3754,13 @@ TEST_F(TokenAnnotatorTest, BraceKind) {
   ASSERT_EQ(Tokens.size(), 9u) << Tokens;
   EXPECT_BRACE_KIND(Tokens[4], BK_BracedInit);
   EXPECT_BRACE_KIND(Tokens[6], BK_BracedInit);
+
+  Tokens = annotate("auto f1{&T::operator()};");
+  ASSERT_EQ(Tokens.size(), 12u) << Tokens;
+  EXPECT_BRACE_KIND(Tokens[2], BK_BracedInit);
+  // Not TT_FunctionDeclarationName.
+  EXPECT_TOKEN(Tokens[6], tok::kw_operator, TT_Unknown);
+  EXPECT_BRACE_KIND(Tokens[9], BK_BracedInit);
 }
 
 TEST_F(TokenAnnotatorTest, UnderstandsElaboratedTypeSpecifier) {