Perform scavenge in idle tasks.

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.
 
 {
   'variables': {
     'v8_code': 1,
   },
   'includes': ['../../build/toolchain.gypi', '../../build/features.gypi'],
   'targets': [
@@ skipping 88 matching lines @@
         'counters-unittest.cc',
         'interpreter/bytecodes-unittest.cc',
         'interpreter/bytecode-array-builder-unittest.cc',
         'interpreter/bytecode-array-iterator-unittest.cc',
         'libplatform/default-platform-unittest.cc',
         'libplatform/task-queue-unittest.cc',
         'libplatform/worker-thread-unittest.cc',
         'heap/gc-idle-time-handler-unittest.cc',
         'heap/memory-reducer-unittest.cc',
         'heap/heap-unittest.cc',
+        'heap/scavenge-job-unittest.cc',
         'run-all-unittests.cc',
         'test-utils.h',
         'test-utils.cc',
       ],
       'conditions': [
         ['v8_target_arch=="arm"', {
           'sources': [  ### gcmole(arch:arm) ###
             'compiler/arm/instruction-selector-arm-unittest.cc',
           ],
         }],
@@ skipping 51 matching lines @@
         }],
         ['v8_wasm!=0', {
           'dependencies': [
             '../../third_party/wasm/test/unittests/wasm/wasm.gyp:wasm_unittests',
           ],
         }],
       ],
     },
   ],
 }