Remove all uses of field-tracking flags that do not make decisions but are subject to existing info…

src/a64/full-codegen-a64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1622 matching lines @@
   int flags = expr->fast_elements()
       ? ObjectLiteral::kFastElements
       : ObjectLiteral::kNoFlags;
   flags |= expr->has_function()
       ? ObjectLiteral::kHasFunction
       : ObjectLiteral::kNoFlags;
   __ Mov(x0, Operand(Smi::FromInt(flags)));
   int properties_count = constant_properties->length() / 2;
   const int max_cloned_properties =
       FastCloneShallowObjectStub::kMaximumClonedProperties;
-  if ((FLAG_track_double_fields && expr->may_store_doubles()) ||
-      (expr->depth() > 1) || Serializer::enabled() ||
-      (flags != ObjectLiteral::kFastElements) ||
-      (properties_count > max_cloned_properties)) {
+  if (expr->may_store_doubles() || expr->depth() > 1 || Serializer::enabled() ||
+      flags != ObjectLiteral::kFastElements ||
+      properties_count > max_cloned_properties) {
     __ Push(x3, x2, x1, x0);
     __ CallRuntime(Runtime::kCreateObjectLiteral, 4);
   } else {
     FastCloneShallowObjectStub stub(properties_count);
     __ CallStub(&stub);
   }
 
   // If result_saved is true the result is on top of the stack.  If
   // result_saved is false the result is in x0.
   bool result_saved = false;
@@ skipping 3327 matching lines @@
   return previous_;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64