Add missing header from r174648

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174649 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Modules/Inputs/MethodPoolASub2.h b/test/Modules/Inputs/MethodPoolASub2.h
new file mode 100644
index 0000000..cd0f785
--- /dev/null
+++ b/test/Modules/Inputs/MethodPoolASub2.h
@@ -0,0 +1,3 @@
+@interface A (Sub2)
+- (char*)method4;
+@end