[Lldb-commits] [clang] [lldb] Serialize `#pragma redefine_extname` into precompiled headers. (PR #186755)

[Will Hawkins via lldb-commits]

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@@ -9691,6 +9709,27 @@ void ASTReader::ReadWeakUndeclaredIdentifiers(
   WeakUndeclaredIdentifiers.clear();
 }
 
+void ASTReader::ReadExtnameUndeclaredIdentifiers(
+    SmallVectorImpl<std::pair<IdentifierInfo *, AsmLabelAttr *>> &ExtnameIDs) {
+  if (ExtnameUndeclaredIdentifiers.empty())
+    return;
+
+  for (unsigned I = 0, N = ExtnameUndeclaredIdentifiers.size(); I < N; I += 3) {
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hawkinsw wrote:

That reasoning makes perfect sense!! 

https://github.com/llvm/llvm-project/pull/186755