clang-plugins: Don't strip non const references in auto raw ptr fixits.

tools/clang/plugins/tests/auto_raw_pointer.cpp

Index: tools/clang/plugins/tests/auto_raw_pointer.cpp
diff --git a/tools/clang/plugins/tests/auto_raw_pointer.cpp b/tools/clang/plugins/tests/auto_raw_pointer.cpp
index 4e1c0f054814b48b271a960eb7a2edab6ffa368e..55214a8bbdab1e9b7e5ce9d9b05e5399acd013b4 100644
--- a/tools/clang/plugins/tests/auto_raw_pointer.cpp
+++ b/tools/clang/plugins/tests/auto_raw_pointer.cpp
@@ -2,7 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-class Foo {};
+#include <utility>

[Nico, 2016/07/01 20:00:26]

This new test fails on the mac upload bots:
https://build.chromium.org/p/tryserver.chromium.mac/builders/mac_upload_clang...
(see bottom)

The plugin tests are supposed to be standalone, please don't include system
headers here (some other tests stub out just the bits they need, see there for
reference).

This is currently blocking clang rolls; please take a look.

+
+class Foo {
+ public:
+  void foo() {}
+};
 
 void f();
 
@@ -35,7 +40,13 @@ int main() {
   auto** double_ptr_auto_double_ptr = &int_ptr;
 
   auto function_ptr = &f;
+  auto method_ptr = &Foo::foo;
 
   int *const *const volatile **const *pointer_awesomeness;
   auto auto_awesome = pointer_awesomeness;
+
+  auto& int_ptr_ref = int_ptr;
+  const auto& const_int_ptr_ref = int_ptr;
+  auto&& int_ptr_rref = std::move(int_ptr);
+  const auto&& const_int_ptr_rref = std::move(int_ptr);
 }