Remove unnecessary default in covered switch over enum

This cleans up the Clang -Werror build that was broken by r177180.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177184 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/AST/ASTDiagnostic.cpp b/lib/AST/ASTDiagnostic.cpp
index 92d656eb06a6c7810c54618d1489fe1b1a716b3d..d4c96cf01e05bd617aed72f436001dde4c085a5a 100644 (file)
--- a/lib/AST/ASTDiagnostic.cpp
+++ b/lib/AST/ASTDiagnostic.cpp
@@ -1132,7 +1132,6 @@ class TemplateDiff {
     // Handle cases where the difference is not templates with different
     // arguments.
     switch (Tree.GetKind()) {
-      default:
       case DiffTree::Invalid:
         llvm_unreachable("Template diffing failed with bad DiffNode");
       case DiffTree::Type: {