[clang] [WIP][Modules] Delay deserialization of preferred_name attribute at r… (PR #122726)

[Ilya Biryukov via cfe-commits]

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@@ -4925,6 +4930,11 @@ void ASTRecordWriter::AddAttr(const Attr *A) {
   Record.push_back(A->isRegularKeywordAttribute());
 
 #include "clang/Serialization/AttrPCHWrite.inc"
+
+  if (A->getKind() == attr::PreferredName)
+    // Record the actual size of preferred_name attribute (-1 to count the
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ilya-biryukov wrote:

LLVM Style Guide covers this situation and suggests to have braces when there are comments in the single branch, see https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements.

Could you add braces here?
The `if` above is a bit more borderline, but I'd also suggest adding braces there.

https://github.com/llvm/llvm-project/pull/122726