[clang-format] Fix regression in BAS_AlwaysBreak for-await (llvm#108634)

Fixes llvm#108589.

Author: gedare

clang/lib/Format/ContinuationIndenter.cpp

@@ -809,7 +809,8 @@ void ContinuationIndenter::addTokenOnCurrentLine(LineState &State, bool DryRun,
     if (Tok.Previous->isIf())
       return Style.AlignAfterOpenBracket == FormatStyle::BAS_AlwaysBreak;
     return !Tok.Previous->isOneOf(TT_CastRParen, tok::kw_for, tok::kw_while,
-                                  tok::kw_switch);
+                                  tok::kw_switch) &&
+           !(Style.isJavaScript() && Tok.Previous->is(Keywords.kw_await));
   };
   auto IsFunctionCallParen = [](const FormatToken &Tok) {
     return Tok.is(tok::l_paren) && Tok.ParameterCount > 0 && Tok.Previous &&

clang/unittests/Format/FormatTestJS.cpp

@@ -2870,6 +2870,11 @@ TEST_F(FormatTestJS, BreakAfterOpenBracket) {
   verifyFormat("failedUserIds.push(await subscriptioxxxxxxxxxxxxnSubset.map(\n"
                "    subscxxxxxxxxxxxxription => subscription.getUserId()));",
                Style);
+  verifyFormat("for await (const packageId of ops.api.iterateEmbeddedFiles(\n"
+               "    this.getFileId().getDriveFile(),\n"
+               "    )) {\n"
+               "}",
+               Style);
 }
 
 } // namespace format