Implement mirror equality on the VM. Resolves issue 12026.

runtime/lib/mirrors.cc

Index: runtime/lib/mirrors.cc
===================================================================
--- runtime/lib/mirrors.cc	(revision 25673)
+++ runtime/lib/mirrors.cc	(working copy)
@@ -454,6 +454,13 @@
 }
 
 
+DEFINE_NATIVE_ENTRY(MirrorReference_equals, 2) {
+  GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, a, arguments->NativeArgAt(0));
+  GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, b, arguments->NativeArgAt(1));
+  return Bool::Get(a.referent() == b.referent());

[rmacnak, 2013/07/31 18:38:01]

Assert no GC? Identical_comparison doesn't.

[siva, 2013/08/01 00:05:06]

Sure you can add a NoGCScope here if you want.

On 2013/07/31 18:38:01, Ryan Macnak wrote:

+}
+
+
 DEFINE_NATIVE_ENTRY(DeclarationMirror_metadata, 1) {
   const MirrorReference& decl_ref =
       MirrorReference::CheckedHandle(arguments->NativeArgAt(0));