Cleaning up usage of lookup results.

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 33f02b6696760b180894b0ca6a490a7fa3430500..8dd58b4ee4ecc8f7b00c267274f183afe9997139 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -2412,7 +2412,7 @@ void LCodeGen::EmitLoadFieldOrConstantFunction(Register result,
   LookupResult lookup(isolate());
   type->LookupInDescriptors(NULL, *name, &lookup);
   ASSERT(lookup.IsFound() || lookup.IsCacheable());
-  if (lookup.IsFound() && lookup.type() == FIELD) {
+  if (lookup.IsField()) {
     int index = lookup.GetLocalFieldIndexFromMap(*type);
     int offset = index * kPointerSize;
     if (index < 0) {
@@ -2424,7 +2424,7 @@ void LCodeGen::EmitLoadFieldOrConstantFunction(Register result,
       __ mov(result, FieldOperand(object, JSObject::kPropertiesOffset));
       __ mov(result, FieldOperand(result, offset + FixedArray::kHeaderSize));
     }
-  } else if (lookup.IsFound() && lookup.type() == CONSTANT_FUNCTION) {
+  } else if (lookup.IsConstantFunction()) {
     Handle<JSFunction> function(lookup.GetConstantFunctionFromMap(*type));
     __ LoadHeapObject(result, function);
   } else {
@@ -2469,8 +2469,7 @@ static bool CompactEmit(
   LookupResult lookup(isolate);
   Handle<Map> map = list->at(i);
   map->LookupInDescriptors(NULL, *name, &lookup);
-  return lookup.IsFound() &&
-      (lookup.type() == FIELD || lookup.type() == CONSTANT_FUNCTION);
+  return lookup.IsField() || lookup.IsConstantFunction();
 }