Pass checked values to HLoadNamedField, removing the need for extra type-check field.

src/hydrogen-escape-analysis.cc

Index: src/hydrogen-escape-analysis.cc
diff --git a/src/hydrogen-escape-analysis.cc b/src/hydrogen-escape-analysis.cc
index 0359678ef958bd2621ea4f207be4ca872673308e..895453b5947e910df74f2c7be04eb1b0a5578414 100644
--- a/src/hydrogen-escape-analysis.cc
+++ b/src/hydrogen-escape-analysis.cc
@@ -215,7 +215,7 @@ void HEscapeAnalysisPhase::AnalyzeDataFlow(HInstruction* allocate) {
           for (HUseIterator it(mapcheck->uses()); !it.Done(); it.Advance()) {
             if (!it.value()->IsLoadNamedField()) continue;
             HLoadNamedField* load = HLoadNamedField::cast(it.value());
-            ASSERT(load->typecheck() == mapcheck);
+            ASSERT(load->object() == mapcheck);

[titzer, 2013/08/21 14:07:56]

Since a load now only has one input, isn't this assert redundant?

[Toon Verwaest, 2013/08/21 14:28:43]

Done.

             load->ClearTypeCheck();
           }
           ASSERT(mapcheck->HasNoUses());