Revert "Snapshot i18n Javascript code" and "Fix mjsunit/debug-script after r16298".

test/cctest/test-heap.cc

 // Copyright 2012 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 3050 matching lines @@
   // Unoptimized code is missing and the deoptimizer will go ballistic.
   CompileRun("var g = mkClosure(); g('bozo');");
 }
 
 
 TEST(Regress169209) {
   i::FLAG_stress_compaction = false;
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_flush_code_incrementally = true;
 
+  // Disable loading the i18n extension which breaks the assumptions of this
+  // test about the heap layout.
+  i::FLAG_enable_i18n = false;
+
   CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   Heap* heap = isolate->heap();
   HandleScope scope(isolate);
 
   // Perform one initial GC to enable code flushing.
   heap->CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
 
   // Prepare a shared function info eligible for code flushing for which
   // the unoptimized code will be replaced during optimization.
@@ skipping 289 matching lines @@
              "    var a = new Array(n);"
              "    for (var i = 0; i < n; i += 100) a[i] = i;"
              "};"
              "f(10 * 1024 * 1024);");
   IncrementalMarking* marking = HEAP->incremental_marking();
   if (marking->IsStopped()) marking->Start();
   // This big step should be sufficient to mark the whole array.
   marking->Step(100 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
   ASSERT(marking->IsComplete());
 }