Add monomorphic CompareNilICs and Crankshaft support

src/spaces.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 1799 matching lines @@
       CASE(BUILTIN);
       CASE(LOAD_IC);
       CASE(KEYED_LOAD_IC);
       CASE(STORE_IC);
       CASE(KEYED_STORE_IC);
       CASE(CALL_IC);
       CASE(KEYED_CALL_IC);
       CASE(UNARY_OP_IC);
       CASE(BINARY_OP_IC);
       CASE(COMPARE_IC);
+      CASE(COMPARE_NIL_IC);
       CASE(TO_BOOLEAN_IC);
     }
   }
 
 #undef CASE
 
   PrintF("\n   Code kind histograms: \n");
   for (int i = 0; i < Code::NUMBER_OF_KINDS; i++) {
     if (isolate->code_kind_statistics()[i] > 0) {
       PrintF("     %-20s: %10d bytes\n", table[i],
@@ skipping 1345 matching lines @@
     object->ShortPrint();
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes());
 }
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal