Fix statement printing for raw and template user-defined literals.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152401 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index d2233e0..d5e53a6 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -1225,14 +1225,17 @@
 void StmtPrinter::VisitUserDefinedLiteral(UserDefinedLiteral *Node) {
   switch (Node->getLiteralOperatorKind()) {
   case UserDefinedLiteral::LOK_Raw:
-    OS << cast<StringLiteral>(Node->getArg(0))->getString();
+    OS << cast<StringLiteral>(Node->getArg(0)->IgnoreImpCasts())->getString();
     break;
   case UserDefinedLiteral::LOK_Template: {
-    DeclRefExpr *DRE = cast<DeclRefExpr>(Node->getCallee());
-    assert(DRE->hasExplicitTemplateArgs());
-    const TemplateArgumentLoc *Args = DRE->getTemplateArgs();
-    for (unsigned i = 0, e = DRE->getNumTemplateArgs(); i != e; ++i) {
-      char C = (char)Args[i].getArgument().getAsIntegral()->getZExtValue();
+    DeclRefExpr *DRE = cast<DeclRefExpr>(Node->getCallee()->IgnoreImpCasts());
+    const TemplateArgumentList *Args =
+      cast<FunctionDecl>(DRE->getDecl())->getTemplateSpecializationArgs();
+    assert(Args);
+    const TemplateArgument &Pack = Args->get(0);
+    for (TemplateArgument::pack_iterator I = Pack.pack_begin(),
+                                         E = Pack.pack_end(); I != E; ++I) {
+      char C = (char)I->getAsIntegral()->getZExtValue();
       OS << C;
     }
     break;