clang/test/CodeGenCXX/virtual-function-attrs.cpp: Appease i686-mingw32 to expect x86_thiscallcc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263505 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGenCXX/virtual-function-attrs.cpp

@@ -8,7 +8,7 @@ class A {
 
 void A::f() {}
 
-// CHECK: define void @_ZN1A1fEv({{.*}}) unnamed_addr
-// CHECK: declare void @_ZN1A1gEv({{.*}}) unnamed_addr
+// CHECK: define [[CC:(x86_thiscallcc )?]]void @_ZN1A1fEv({{.*}}) unnamed_addr
+// CHECK: declare [[CC]]void @_ZN1A1gEv({{.*}}) unnamed_addr
 // CHECK: declare {{.*}} @_ZN1AD1Ev({{.*}}) unnamed_addr
-// CHECK: declare void @_ZN1AD0Ev({{.*}}) unnamed_addr
+// CHECK: declare [[CC]]void @_ZN1AD0Ev({{.*}}) unnamed_addr