Add enough checking to ensure that non-constant block literals don't
appear to be constant.  I'll probably redo this and throw it all away
later once we have codegen for BlockDeclRefExprs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65070 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/StmtSerialization.cpp b/lib/AST/StmtSerialization.cpp
index a6cf01f..009a2dd 100644
--- a/lib/AST/StmtSerialization.cpp
+++ b/lib/AST/StmtSerialization.cpp
@@ -1290,11 +1290,14 @@
 void BlockExpr::EmitImpl(Serializer& S) const {
   S.Emit(getType());
   S.EmitOwnedPtr(TheBlock);
+  S.EmitBool(HasBlockDeclRefExprs);
 }
 
 BlockExpr* BlockExpr::CreateImpl(Deserializer& D, ASTContext& C) {
   QualType T = QualType::ReadVal(D);
-  return new BlockExpr(cast<BlockDecl>(D.ReadOwnedPtr<Decl>(C)),T);
+  BlockDecl *B = cast<BlockDecl>(D.ReadOwnedPtr<Decl>(C));
+  bool H = D.ReadBool();
+  return new BlockExpr(B,T,H);
 }
 
 void BlockDeclRefExpr::EmitImpl(Serializer& S) const {