Fix a bad merge that lead to unused optimization: implement the dataEquals in HInterceptor in order…

sdk/lib/_internal/compiler/implementation/ssa/nodes.dart

Index: sdk/lib/_internal/compiler/implementation/ssa/nodes.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/ssa/nodes.dart	(revision 15407)
+++ sdk/lib/_internal/compiler/implementation/ssa/nodes.dart	(working copy)
@@ -2385,6 +2385,11 @@
 
   int typeCode() => HInstruction.INTERCEPTOR_TYPECODE;
   bool typeEquals(other) => other is HInterceptor;
+  // We treat the data in a [HInterceptor] to always be equal to
+  // another, even if the [interceptedClasses] set is different. That
+  // is because we know the first [getInterceptor] call will fetch an
+  // interceptor of the right kind.

[ahe, 2012/11/27 18:29:01]

How do you know that?

[floitsch, 2012/11/27 18:51:38]

Because the input is the same.

[ahe, 2012/11/27 19:03:36]

I'm still not sure I understand.  Don't worry, I'll ask Nicolas for more details
tomorrow :-)

+  bool dataEquals(other) => true;
 }
 
 /** An [HLazyStatic] is a static that is initialized lazily at first read. */