Disable -Wduplicate-method-match by default.  <rdar://problem/10663536>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148343 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjC/check-dup-decl-methods-1.m b/test/SemaObjC/check-dup-decl-methods-1.m
index 667c381..3895667 100644
--- a/test/SemaObjC/check-dup-decl-methods-1.m
+++ b/test/SemaObjC/check-dup-decl-methods-1.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -Wduplicate-method-match -fsyntax-only -verify %s
 
 @interface SUPER
 - (int) meth;