Canonicalize template template parameters. We can't test this yet, but
it's "obviously correct" :) 

llvm-svn: 77677
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index 791c439..5a04df0 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -622,7 +622,11 @@
       return;
     }
     
-    // FIXME: Template template parameters?
+    if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(D)) {
+      ID.AddInteger(TTP->getDepth());
+      ID.AddInteger(TTP->getIndex());
+      return;
+    }
     
     if (OverloadedFunctionDecl *Ovl = dyn_cast<OverloadedFunctionDecl>(D)) {
       // Canonicalize all of the function declarations within the overload