Revert r78535, it is causing a number of failures to build projects.

--- Reverse-merging r78535 into '.':
D    test/Sema/altivec-init.c
U    include/clang/Basic/DiagnosticSemaKinds.td
U    include/clang/AST/Expr.h
U    include/clang/AST/StmtNodes.def
U    include/clang/Parse/Parser.h
U    include/clang/Parse/Action.h
U    tools/clang-cc/clang-cc.cpp
U    lib/Frontend/PrintParserCallbacks.cpp
U    lib/CodeGen/CGExprScalar.cpp
U    lib/Sema/SemaInit.cpp
U    lib/Sema/Sema.h
U    lib/Sema/SemaExpr.cpp
U    lib/Sema/SemaTemplateInstantiateExpr.cpp
U    lib/AST/StmtProfile.cpp
U    lib/AST/Expr.cpp
U    lib/AST/StmtPrinter.cpp
U    lib/Parse/ParseExpr.cpp
U    lib/Parse/ParseExprCXX.cpp


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78551 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateInstantiateExpr.cpp b/lib/Sema/SemaTemplateInstantiateExpr.cpp
index 7a09210..186c98c 100644
--- a/lib/Sema/SemaTemplateInstantiateExpr.cpp
+++ b/lib/Sema/SemaTemplateInstantiateExpr.cpp
@@ -639,20 +639,6 @@
 }
 
 Sema::OwningExprResult 
-TemplateExprInstantiator::VisitParenListExpr(ParenListExpr *E) {
-  ASTOwningVector<&ActionBase::DeleteExpr, 4> Inits(SemaRef);
-  for (unsigned I = 0, N = E->getNumExprs(); I != N; ++I) {
-    OwningExprResult Init = Visit(E->getExpr(I));
-    if (Init.isInvalid())
-      return SemaRef.ExprError();
-    Inits.push_back(Init.takeAs<Expr>());
-  }
-
-  return SemaRef.ActOnParenListExpr(E->getLParenLoc(), E->getRParenLoc(),
-                                    move_arg(Inits));
-}
-
-Sema::OwningExprResult 
 TemplateExprInstantiator::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
   Designation Desig;
 
@@ -900,7 +886,7 @@
   if (SubExpr.isInvalid())
     return SemaRef.ExprError();
   
-  return SemaRef.ActOnCastExpr(/*Scope=*/0, E->getLParenLoc(), 
+  return SemaRef.ActOnCastExpr(E->getLParenLoc(), 
                                ExplicitTy.getAsOpaquePtr(),
                                E->getRParenLoc(),
                                move(SubExpr));