Make the preparser standalone library and process build in debug mode.

src/isolate.h

 // Copyright 2010 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 274 matching lines @@
 typedef List<HeapObject*, PreallocatedStorage> DebugObjectCache;
 
 #define ISOLATE_INIT_LIST(V)                                                   \
   /* AssertNoZoneAllocation state. */                                          \
   V(bool, zone_allow_allocation, true)                                         \
   /* SerializerDeserializer state. */                                          \
   V(int, serialize_partial_snapshot_cache_length, 0)                           \
   /* Assembler state. */                                                       \
   /* A previously allocated buffer of kMinimalBufferSize bytes, or NULL. */    \
   V(byte*, assembler_spare_buffer, NULL)                                       \
-  /*This static counter ensures that NativeAllocationCheckers can be nested.*/ \
-  V(int, allocation_disallowed, 0)                                             \
   V(FatalErrorCallback, exception_behavior, NULL)                              \
   V(v8::Debug::MessageHandler, message_handler, NULL)                          \
   /* To distinguish the function templates, so that we can find them in the */ \
   /* function cache of the global context. */                                  \
   V(int, next_serial_number, 0)                                                \
   V(ExternalReferenceRedirectorPointer*, external_reference_redirector, NULL)  \
   V(bool, always_allow_natives_syntax, false)                                  \
   /* Part of the state of liveedit. */                                         \
   V(FunctionInfoListener*, active_function_info_listener, NULL)                \
   /* State for Relocatable. */                                                 \
@@ skipping 994 matching lines @@
 
 } }  // namespace v8::internal
 
 // TODO(isolates): Get rid of these -inl.h includes and place them only where
 //                 they're needed.
 #include "allocation-inl.h"
 #include "zone-inl.h"
 #include "frames-inl.h"
 
 #endif  // V8_ISOLATE_H_