When we're devirtualizing a method call, make sure the method has the correct IR type.

Reported in the thread "devirtualisation appears to crash clang on covariant functions on ARM" on cfe-dev.

llvm-svn: 166651
diff --git a/clang/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp b/clang/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp
index ab781da..40f3cad 100644
--- a/clang/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp
+++ b/clang/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp
@@ -131,8 +131,7 @@
     // CHECK: alloca
     // CHECK-NEXT: store
     // CHECK-NEXT: load
-    // CHECK-NEXT: bitcast
-    // CHECK-NEXT: call {{.*}} @_ZN5Test73zed1fEv
+    // CHECK-NEXT: call i32 @_ZN5Test73zed1fEv
     // CHECK-NEXT: ret
     return static_cast<bar*>(z)->f();
   }