Implement a dynamically growing memory log buffer with an upper limit.

tools/gyp/v8.gyp

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@@ skipping 132 matching lines @@
       '../../src/jump-target.cc',
       '../../src/jump-target.h',
       '../../src/jump-target-inl.h',
       '../../src/jsregexp-inl.h',
       '../../src/jsregexp.cc',
       '../../src/jsregexp.h',
       '../../src/list-inl.h',
       '../../src/list.h',
       '../../src/log.cc',
       '../../src/log.h',
+      '../../src/log-utils.cc',
+      '../../src/log-utils.h',
       '../../src/macro-assembler.h',
       '../../src/mark-compact.cc',
       '../../src/mark-compact.h',
       '../../src/memory.h',
       '../../src/messages.cc',
       '../../src/messages.h',
       '../../src/natives.h',
       '../../src/objects-debug.cc',
       '../../src/objects-inl.h',
       '../../src/objects.cc',
@@ skipping 554 matching lines @@
         ],
         'msvs_settings': {
           'VCLinkerTool': {
             'AdditionalOptions': '/IGNORE:4221 /NXCOMPAT',
           },
         },
       },
     }],
   ],
 }