Create a new PrintingPolicy class, which we pass down through the AST
printing logic to help customize the output. For now, we use this
rather than a special flag to suppress the "struct" when printing
"struct X" and to print the Boolean type as "bool" in C++ but "_Bool"
in C.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72590 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateInstantiate.cpp b/lib/Sema/SemaTemplateInstantiate.cpp
index 42f36d1..3cac739 100644
--- a/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/lib/Sema/SemaTemplateInstantiate.cpp
@@ -149,7 +149,8 @@
       std::string TemplateArgsStr
         = TemplateSpecializationType::PrintTemplateArgumentList(
                                                       Active->TemplateArgs, 
-                                                      Active->NumTemplateArgs);
+                                                      Active->NumTemplateArgs,
+                                                      Context.PrintingPolicy);
       Diags.Report(FullSourceLoc(Active->PointOfInstantiation, SourceMgr),
                    diag::note_default_arg_instantiation_here)
         << (Template->getNameAsString() + TemplateArgsStr)