[clang] [C++20][Modules] Prevent premature calls to PassInterestingDeclsToConsumer() within FinishedDeserializing(). (PR #129982)

[Shafik Yaghmour via cfe-commits]

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@@ -4309,12 +4309,12 @@ Decl *ASTReader::ReadDeclRecord(GlobalDeclID ID) {
 void ASTReader::PassInterestingDeclsToConsumer() {
   assert(Consumer);
 
-  if (PassingDeclsToConsumer)
+  if (!CanPassDeclsToConsumer)
     return;
 
   // Guard variable to avoid recursively redoing the process of passing
   // decls to consumer.
-  SaveAndRestore GuardPassingDeclsToConsumer(PassingDeclsToConsumer, true);
+  SaveAndRestore GuardPassingDeclsToConsumer(CanPassDeclsToConsumer, false);
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shafik wrote:

nitpick `false` -> `/*NewValue=*/false`

https://github.com/llvm/llvm-project/pull/129982