Add a CXXDestroyExpr. Add classof member functions to CXXTempVarDecl.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69654 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ExprCXX.cpp b/lib/AST/ExprCXX.cpp
index d73ea37..0c9b627 100644
--- a/lib/AST/ExprCXX.cpp
+++ b/lib/AST/ExprCXX.cpp
@@ -253,3 +253,17 @@
 CXXTemporaryObjectExpr::~CXXTemporaryObjectExpr() {
   delete [] Args;
 }
+
+CXXDestroyExpr *CXXDestroyExpr::Create(ASTContext &C, VarDecl *vd) {
+  assert(vd->getKind() == Decl::CXXTempVar || vd->getKind() == Decl::Var &&
+         "Can only create a destroy expr with a temp var decl or a var decl!");
+
+  return new (C) CXXDestroyExpr(vd, C.VoidTy);
+}
+
+Stmt::child_iterator CXXDestroyExpr::child_begin() { 
+  return child_iterator();
+}
+Stmt::child_iterator CXXDestroyExpr::child_end() {
+  return child_iterator();
+}
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index 7f9c4cc..888c15a 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -1097,6 +1097,10 @@
   OS << E->getName().getAsString();
 }
 
+void StmtPrinter::VisitCXXDestroyExpr(CXXDestroyExpr *E) {
+  // Nothing to print.
+}
+
 static const char *getTypeTraitName(UnaryTypeTrait UTT) {
   switch (UTT) {
   default: assert(false && "Unknown type trait");