[PATCH] [ms-cxxabi] Handle template-template arguments

[Reid Kleckner]

  LGTM


================
Comment at: lib/AST/MicrosoftMangle.cpp:905
@@ +904,3 @@
+    mangleType(cast<TagDecl>(
+        TA.getAsTemplate().getAsTemplateDecl()->getTemplatedDecl()));
+    break;
----------------
Reid Kleckner wrote:
> The Itanium mangler tries to unpack the TemplateName a bit, but many of those cases look unreachable.  Can you issue an error diagnostic if getAsTemplatedDecl() returns null?
Based on discussion in person, it looks like the cases where getAsTemplateDecl() returns null may be dead code in the Itanium mangler.  I'm OK with this as is.


http://llvm-reviews.chandlerc.com/D1285

BRANCH
  PR16789

ARCANIST PROJECT
  clang