Keep track of whether the asm is volatile or not.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44297 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/StmtSerialization.cpp b/AST/StmtSerialization.cpp
index 46f8559..3134f88 100644
--- a/AST/StmtSerialization.cpp
+++ b/AST/StmtSerialization.cpp
@@ -201,6 +201,7 @@
   getAsmString()->EmitImpl(S);
   S.Emit(RParenLoc);  
 
+  S.EmitBool(IsVolatile);
   S.EmitInt(NumOutputs);
   S.EmitInt(NumInputs);
 
@@ -225,7 +226,8 @@
   StringLiteral *AsmStr = StringLiteral::CreateImpl(D);
   SourceLocation PLoc = SourceLocation::ReadVal(D);
   
-  AsmStmt *Stmt = new AsmStmt(ALoc, 0, 0, 0, 0, 0,  
+  bool IsVolatile = D.ReadBool();
+  AsmStmt *Stmt = new AsmStmt(ALoc, IsVolatile, 0, 0, 0, 0, 0,  
                               AsmStr, 
                               0, 0, PLoc);