Fix the funcsig test with an explicit triple

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@205781 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGenCXX/funcsig.cpp

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c++11 %s -fms-extensions -fno-rtti -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -std=c++11 -triple i686-pc-win32 %s -fms-extensions -fno-rtti -emit-llvm -o - | FileCheck %s
 
 // Similar to predefined-expr.cpp, but not as exhaustive, since it's basically
 // equivalent to __PRETTY_FUNCTION__.