Fix BUILD.gn files and add presubmit step

test/unittests/unittests.gyp

 # Copyright 2014 the V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # The sources are kept automatically in sync with BUILD.gn.
 
 {
   'variables': {
     'v8_code': 1,
     'unittests_sources': [  ### gcmole(all) ###
@@ skipping 36 matching lines @@
       'compiler/instruction-sequence-unittest.cc',
       'compiler/instruction-sequence-unittest.h',
       'compiler/int64-lowering-unittest.cc',
       'compiler/js-builtin-reducer-unittest.cc',
       'compiler/js-create-lowering-unittest.cc',
       'compiler/js-intrinsic-lowering-unittest.cc',
       'compiler/js-operator-unittest.cc',
       'compiler/js-typed-lowering-unittest.cc',
       'compiler/linkage-tail-call-unittest.cc',
       'compiler/liveness-analyzer-unittest.cc',
+      'compiler/live-range-builder.h',
       'compiler/live-range-unittest.cc',
       'compiler/load-elimination-unittest.cc',
       'compiler/loop-peeling-unittest.cc',
       'compiler/machine-operator-reducer-unittest.cc',
       'compiler/machine-operator-unittest.cc',
       'compiler/move-optimizer-unittest.cc',
       'compiler/node-cache-unittest.cc',
       'compiler/node-matchers-unittest.cc',
       'compiler/node-properties-unittest.cc',
       'compiler/node-test-utils.cc',
@@ skipping 19 matching lines @@
       'interpreter/bytecodes-unittest.cc',
       'interpreter/bytecode-array-builder-unittest.cc',
       'interpreter/bytecode-array-iterator-unittest.cc',
       'interpreter/bytecode-array-writer-unittest.cc',
       'interpreter/bytecode-dead-code-optimizer-unittest.cc',
       'interpreter/bytecode-decoder-unittest.cc',
       'interpreter/bytecode-peephole-optimizer-unittest.cc',
       'interpreter/bytecode-pipeline-unittest.cc',
       'interpreter/bytecode-register-allocator-unittest.cc',
       'interpreter/bytecode-register-optimizer-unittest.cc',
+      'interpreter/bytecode-utils.h',
       'interpreter/constant-array-builder-unittest.cc',
       'interpreter/interpreter-assembler-unittest.cc',
       'interpreter/interpreter-assembler-unittest.h',
       'libplatform/default-platform-unittest.cc',
       'libplatform/task-queue-unittest.cc',
       'libplatform/worker-thread-unittest.cc',
       'heap/bitmap-unittest.cc',
       'heap/gc-idle-time-handler-unittest.cc',
       'heap/gc-tracer-unittest.cc',
       'heap/marking-unittest.cc',
@@ skipping 152 matching lines @@
             '../../gypfiles/isolate.gypi',
           ],
           'sources': [
             'unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }