Fix equality instruction to switch from checked (polymorphic) to megamorphic state. This helps da…

runtime/vm/intermediate_language_ia32.cc

Index: runtime/vm/intermediate_language_ia32.cc
===================================================================
--- runtime/vm/intermediate_language_ia32.cc	(revision 14294)
+++ runtime/vm/intermediate_language_ia32.cc	(working copy)
@@ -310,7 +310,7 @@
     locs->set_out(Location::RequiresRegister());
     return locs;
   }
-  if (HasICData() && (ic_data()->NumberOfChecks() > 0)) {
+  if (IsPolymorphic()) {
     const intptr_t kNumTemps = 1;
     LocationSummary* locs =
         new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kCall);
@@ -745,7 +745,7 @@
                            deopt_id());
     return;
   }
-  if (HasICData() && (ic_data()->NumberOfChecks() > 0)) {
+  if (IsPolymorphic()) {
     EmitGenericEqualityCompare(compiler, locs(), kind(), kNoBranch, *ic_data(),
                                deopt_id(), token_pos());
     return;
@@ -787,7 +787,7 @@
                            deopt_id());
     return;
   }
-  if (HasICData() && (ic_data()->NumberOfChecks() > 0)) {
+  if (IsPolymorphic()) {
     EmitGenericEqualityCompare(compiler, locs(), kind(), branch, *ic_data(),
                                deopt_id(), token_pos());
     return;