Revert "Track field types."

src/arm/stub-cache-arm.cc

Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
index ebbfce683c3dfecdbad1317d2f69bcd7daafdfa8..c595e427458c711c182e78a86f51bdc72b3036d2 100644
--- a/src/arm/stub-cache-arm.cc
+++ b/src/arm/stub-cache-arm.cc
@@ -430,14 +430,7 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   } else if (representation.IsSmi()) {
     __ JumpIfNotSmi(value_reg, miss_label);
   } else if (representation.IsHeapObject()) {
-    HeapType* field_type = descriptors->GetFieldType(descriptor);
-    if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
-                  miss_label, DO_SMI_CHECK);
-    } else {
-      ASSERT(HeapType::Any()->Is(field_type));
-      __ JumpIfSmi(value_reg, miss_label);
-    }
+    __ JumpIfSmi(value_reg, miss_label);
   } else if (representation.IsDouble()) {
     Label do_store, heap_number;
     __ LoadRoot(scratch3, Heap::kHeapNumberMapRootIndex);
@@ -599,14 +592,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
   if (representation.IsSmi()) {
     __ JumpIfNotSmi(value_reg, miss_label);
   } else if (representation.IsHeapObject()) {
-    HeapType* field_type = lookup->GetFieldType();
-    if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
-                  miss_label, DO_SMI_CHECK);
-    } else {
-      ASSERT(HeapType::Any()->Is(field_type));
-      __ JumpIfSmi(value_reg, miss_label);
-    }
+    __ JumpIfSmi(value_reg, miss_label);
   } else if (representation.IsDouble()) {
     // Load the double storage.
     if (index < 0) {