[stubs] Extend HasProperty stub with dictionary-mode and double-elements objects support.

src/utils.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/utils.h"
 
 #include <stdarg.h>
 #include <sys/stat.h>
 
 #include "src/base/functional.h"
@@ skipping 412 matching lines @@
       CreateMemCopyUint16Uint8Function(isolate, &MemCopyUint16Uint8Wrapper);
 #elif V8_OS_POSIX && V8_HOST_ARCH_MIPS
   memcopy_uint8_function =
       CreateMemCopyUint8Function(isolate, &MemCopyUint8Wrapper);
 #endif
 }
 
 
 bool DoubleToBoolean(double d) {
   // NaN, +0, and -0 should return the false object
-#if V8_TARGET_LITTLE_ENDIAN
-  union IeeeDoubleLittleEndianArchType u;
-#else
-  union IeeeDoubleBigEndianArchType u;
-#endif
+  IeeeDoubleArchType u;
+
   u.d = d;
   if (u.bits.exp == 2047) {
     // Detect NaN for IEEE double precision floating point.
     if ((u.bits.man_low | u.bits.man_high) != 0) return false;
   }
   if (u.bits.exp == 0) {
     // Detect +0, and -0 for IEEE double precision floating point.
     if ((u.bits.man_low | u.bits.man_high) == 0) return false;
   }
   return true;
 }
 
 
 }  // namespace internal
 }  // namespace v8