Implemented serialization of TypedefDecls.
Fixed infinite recursion in VarDecl::InternalRead.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43739 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/DeclSerialization.cpp b/AST/DeclSerialization.cpp
index a9819be..9ceb6ad 100644
--- a/AST/DeclSerialization.cpp
+++ b/AST/DeclSerialization.cpp
@@ -41,6 +41,10 @@
     case Function:
       cast<FunctionDecl>(this)->Emit(S);
       break;
+      
+    case Typedef:
+      cast<TypedefDecl>(this)->Emit(S);
+      break;
   }
 }
 
@@ -82,7 +86,7 @@
 void VarDecl::InternalEmit(llvm::Serializer& S) const {
   S.EmitInt(SClass);
   S.EmitInt(objcDeclQualifier);
-  VarDecl::InternalEmit(S);
+  ValueDecl::InternalEmit(S);
   S.EmitOwnedPtr(Init);
 }
 
@@ -165,3 +169,17 @@
   
   return decl;
 }
+
+void TypedefDecl::Emit(llvm::Serializer& S) const {
+  S.Emit(getLocation());
+  InternalEmit(S);
+  S.Emit(UnderlyingType);  
+}
+
+TypedefDecl* TypedefDecl::Materialize(llvm::Deserializer& D) {
+  SourceLocation L = SourceLocation::ReadVal(D);
+  TypedefDecl* decl = new TypedefDecl(L,NULL,QualType(),NULL);
+  decl->InternalRead(D);
+  D.Read(decl->UnderlyingType);
+  return decl;
+}