Cleanup ObjCSuperRefExpr (remove last usage and AST node:-).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54617 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/ExprObjC.h b/include/clang/AST/ExprObjC.h
index ab4992c..889b7c8 100644
--- a/include/clang/AST/ExprObjC.h
+++ b/include/clang/AST/ExprObjC.h
@@ -359,28 +359,6 @@
   static ObjCMessageExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C);
 };
 
-/// ObjCSuperRefExpr - A reference to super.
-class ObjCSuperRefExpr : public Expr {
-  SourceLocation Loc;
-public:
-  ObjCSuperRefExpr(QualType t, SourceLocation l) : 
-    Expr(ObjCSuperRefExprClass, t), Loc(l) {}
-  
-  virtual SourceRange getSourceRange() const { return SourceRange(Loc); }
-  
-  static bool classof(const Stmt *T) { 
-    return T->getStmtClass() == ObjCSuperRefExprClass; 
-  }
-  static bool classof(const ObjCSuperRefExpr *) { return true; }
-  
-  // Iterators
-  virtual child_iterator child_begin();
-  virtual child_iterator child_end();
-  
-  virtual void EmitImpl(llvm::Serializer& S) const;
-  static ObjCSuperRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C);
-};
-
 }  // end namespace clang
 
 #endif
diff --git a/include/clang/AST/StmtNodes.def b/include/clang/AST/StmtNodes.def
index 3f2b355..e4fa138 100644
--- a/include/clang/AST/StmtNodes.def
+++ b/include/clang/AST/StmtNodes.def
@@ -101,11 +101,10 @@
 STMT(74, ObjCProtocolExpr     , Expr)
 STMT(75, ObjCIvarRefExpr      , Expr)
 STMT(76, ObjCPropertyRefExpr  , Expr)
-STMT(77, ObjCSuperRefExpr     , Expr)
 
 // Clang Extensions.
-STMT(78, OverloadExpr         , Expr)
-STMT(79, ShuffleVectorExpr    , Expr)
+STMT(77, OverloadExpr         , Expr)
+STMT(78, ShuffleVectorExpr    , Expr)
 
 LAST_EXPR(79)
 
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 8cf3b37..97e1897 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -1259,10 +1259,6 @@
 Stmt::child_iterator ObjCPropertyRefExpr::child_begin() { return &Base; }
 Stmt::child_iterator ObjCPropertyRefExpr::child_end() { return &Base+1; }
 
-// ObjCSuperRefExpr
-Stmt::child_iterator ObjCSuperRefExpr::child_begin() { return child_iterator();}
-Stmt::child_iterator ObjCSuperRefExpr::child_end() { return child_iterator(); }
-
 // PredefinedExpr
 Stmt::child_iterator PredefinedExpr::child_begin() { return child_iterator(); }
 Stmt::child_iterator PredefinedExpr::child_end() { return child_iterator(); }
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index a9818f8..7cd00da 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -476,10 +476,6 @@
   OS << Node->getDecl()->getName();
 }
 
-void StmtPrinter::VisitObjCSuperRefExpr(ObjCSuperRefExpr *Node) {
-  OS << "super";
-}
-
 void StmtPrinter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) {
   if (Node->getBase()) {
     PrintExpr(Node->getBase());
diff --git a/lib/AST/StmtSerialization.cpp b/lib/AST/StmtSerialization.cpp
index cc26b27..99ca10d 100644
--- a/lib/AST/StmtSerialization.cpp
+++ b/lib/AST/StmtSerialization.cpp
@@ -1089,17 +1089,6 @@
   return new ObjCStringLiteral(String,T,L);
 }
 
-void ObjCSuperRefExpr::EmitImpl(Serializer& S) const {
-  S.Emit(Loc);
-  S.Emit(getType());
-}
-
-ObjCSuperRefExpr* ObjCSuperRefExpr::CreateImpl(Deserializer& D, ASTContext& C) {
-  SourceLocation Loc = SourceLocation::ReadVal(D);
-  QualType T = QualType::ReadVal(D); 
-  return new ObjCSuperRefExpr(T, Loc); 
-}
-
 //===----------------------------------------------------------------------===//
 //   C++ Serialization
 //===----------------------------------------------------------------------===//
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index b44fd87..f68f82b 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -332,10 +332,11 @@
                                  static_cast<Expr*>(SelfExpr.Val), true, true);
       }
     }
+    // Needed to implement property "super.method" notation.
     if (SD == 0 && !strcmp(II.getName(), "super")) {
       QualType T = Context.getPointerType(Context.getObjCInterfaceType(
                      getCurMethodDecl()->getClassInterface()));
-      return new ObjCSuperRefExpr(T, Loc);
+      return new PredefinedExpr(Loc, T, PredefinedExpr::ObjCSuper);
     }
   }