Assert when we try to mangle a dependent template name, rather than
crashing unceremoniously.

llvm-svn: 95464
diff --git a/clang/lib/CodeGen/Mangle.cpp b/clang/lib/CodeGen/Mangle.cpp
index 3f541ae..9ac5956 100644
--- a/clang/lib/CodeGen/Mangle.cpp
+++ b/clang/lib/CodeGen/Mangle.cpp
@@ -1104,7 +1104,7 @@
         dyn_cast<TemplateSpecializationType>(QTy)) {
     if (!mangleSubstitution(QualType(TST, 0))) {
       TemplateDecl *TD = TST->getTemplateName().getAsTemplateDecl();
-
+      assert(TD && "FIXME: Support dependent template names");
       mangleTemplatePrefix(TD);
       mangleTemplateArgs(TST->getArgs(), TST->getNumArgs());
       addSubstitution(QualType(TST, 0));
@@ -1467,6 +1467,8 @@
     mangleType(A.getAsType());
     break;
   case TemplateArgument::Template:
+    assert(A.getAsTemplate().getAsTemplateDecl() &&
+           "FIXME: Support dependent template names");
     mangleName(A.getAsTemplate().getAsTemplateDecl());
     break;      
   case TemplateArgument::Expression: