Revert "deprecate Context::New which returns Persistent"

test/cctest/test-hashing.cc

 // Copyright 2011 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 29 matching lines @@
 
 #ifdef USE_SIMULATOR
 #include "simulator.h"
 #endif
 
 using namespace v8::internal;
 
 
 typedef uint32_t (*HASH_FUNCTION)();
 
+static v8::Persistent<v8::Context> env;
+
 #define __ masm->
 
 
 void generate(MacroAssembler* masm, i::Vector<const uint8_t> string) {
   // GenerateHashInit takes the first character as an argument so it can't
   // handle the zero length string.
   ASSERT(string.length() > 0);
 #ifdef V8_TARGET_ARCH_IA32
   __ push(ebx);
   __ push(ecx);
@@ skipping 166 matching lines @@
   check(i::Vector<const uint8_t>(ab, 2));
 }
 
 
 static uint32_t PseudoRandom(uint32_t i, uint32_t j) {
   return ~(~((i * 781) ^ (j * 329)));
 }
 
 
 TEST(StringHash) {
-  v8::Isolate* isolate = v8::Isolate::GetCurrent();
-  v8::HandleScope handle_scope(isolate);
-  v8::Context::Scope context_scope(v8::Context::New(isolate));
-
+  if (env.IsEmpty()) env = v8::Context::New();
   for (uint8_t a = 0; a < String::kMaxOneByteCharCode; a++) {
     // Numbers are hashed differently.
     if (a >= '0' && a <= '9') continue;
     for (uint8_t b = 0; b < String::kMaxOneByteCharCode; b++) {
       if (b >= '0' && b <= '9') continue;
       check_twochars(a, b);
     }
   }
   check(i::Vector<const char>("*",       1));
   check(i::Vector<const char>(".zZ",     3));
   check(i::Vector<const char>("muc",     3));
   check(i::Vector<const char>("(>'_')>", 7));
   check(i::Vector<const char>("-=[ vee eight ftw ]=-", 21));
 }
 
 
 TEST(NumberHash) {
-  v8::Isolate* isolate = v8::Isolate::GetCurrent();
-  v8::HandleScope handle_scope(isolate);
-  v8::Context::Scope context_scope(v8::Context::New(isolate));
+  if (env.IsEmpty()) env = v8::Context::New();
 
   // Some specific numbers
   for (uint32_t key = 0; key < 42; key += 7) {
     check(key);
   }
 
   // Some pseudo-random numbers
   static const uint32_t kLimit = 1000;
   for (uint32_t i = 0; i < 5; i++) {
     for (uint32_t j = 0; j < 5; j++) {
       check(PseudoRandom(i, j) % kLimit);
     }
   }
 }
 
 #undef __