Enable snapshots on MIPS. This is based on

src/arm/assembler-arm.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 121 matching lines @@
 
 
 bool RelocInfo::IsCodedSpecially() {
   // The deserializer needs to know whether a pointer is specially coded.  Being
   // specially coded on ARM means that it is a movw/movt instruction.  We don't
   // generate those yet.
   return false;
 }
 
 
-
 void RelocInfo::PatchCode(byte* instructions, int instruction_count) {
   // Patch the code at the current address with the supplied instructions.
   Instr* pc = reinterpret_cast<Instr*>(pc_);
   Instr* instr = reinterpret_cast<Instr*>(instructions);
   for (int i = 0; i < instruction_count; i++) {
     *(pc + i) = *(instr + i);
   }
 
   // Indicate that code has changed.
   CPU::FlushICache(pc_, instruction_count * Assembler::kInstrSize);
@@ skipping 2504 matching lines @@
 
   // Since a constant pool was just emitted, move the check offset forward by
   // the standard interval.
   next_buffer_check_ = pc_offset() + kCheckPoolInterval;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM