Enable map dependency to in-flight compilation info.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 98f1e8beb45dde94f0f9204d4f7f3d24a58d3457..5d1f46d065634bc7381850bddca5bf9c0362a740 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -109,10 +109,8 @@ void LCodeGen::FinishCode(Handle<Code> code) {
   if (!info()->IsStub()) {
     Deoptimizer::EnsureRelocSpaceForLazyDeoptimization(code);
   }
-  for (int i = 0 ; i < prototype_maps_.length(); i++) {
-    prototype_maps_.at(i)->AddDependentCode(
-        DependentCode::kPrototypeCheckGroup, code);
-  }
+  info()->CommitDependentMaps(code);
+
   for (int i = 0 ; i < transition_maps_.length(); i++) {
     transition_maps_.at(i)->AddDependentCode(
         DependentCode::kTransitionGroup, code);
@@ -5988,11 +5986,7 @@ void LCodeGen::DoCheckPrototypeMaps(LCheckPrototypeMaps* instr) {
 
   ASSERT(prototypes->length() == maps->length());
 
-  if (instr->hydrogen()->CanOmitPrototypeChecks()) {
-    for (int i = 0; i < maps->length(); i++) {
-      prototype_maps_.Add(maps->at(i), info()->zone());
-    }
-  } else {
+  if (!instr->hydrogen()->CanOmitPrototypeChecks()) {
     for (int i = 0; i < prototypes->length(); i++) {
       __ LoadHeapObject(reg, prototypes->at(i));
       DoCheckMapCommon(reg, maps->at(i), instr);