Add a library suitable for libfuzzer with a small unit test runner shell

test/fuzzer/fuzzer.gyp

Index: test/fuzzer/fuzzer.gyp
diff --git a/test/fuzzer/fuzzer.gyp b/test/fuzzer/fuzzer.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..38ed563cdac630ada14ec8c94204538547c22ba6
--- /dev/null
+++ b/test/fuzzer/fuzzer.gyp
@@ -0,0 +1,80 @@
+# Copyright 2016 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': [
+    {
+      'target_name': 'parser_fuzzer',
+      'type': 'executable',
+      'dependencies': [
+        'parser_fuzzer_lib',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [
+        'fuzzer.cc',
+      ],
+    },
+    {
+      'target_name': 'parser_fuzzer_lib',
+      'type': 'static_library',
+      'dependencies': [
+        'fuzzer_support',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [  ### gcmole(all) ###
+        'parser.cc',
+      ],
+    },
+    {
+      'target_name': 'fuzzer_support',
+      'type': 'static_library',
+      'dependencies': [
+        '../../tools/gyp/v8.gyp:v8_libplatform',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [  ### gcmole(all) ###
+        'fuzzer-support.cc',
+        'fuzzer-support.h',
+      ],
+      'conditions': [
+        ['component=="shared_library"', {
+          # fuzzers can't be built against a shared library, so we need to
+          # depend on the underlying static target in that case.
+          'dependencies': ['../../tools/gyp/v8.gyp:v8_maybe_snapshot'],
+        }, {
+          'dependencies': ['../../tools/gyp/v8.gyp:v8'],
+        }],
+      ],
+    },
+  ],
+  'conditions': [
+    ['test_isolation_mode != "noop"', {
+      'targets': [
+        {
+          'target_name': 'fuzzer_run',
+          'type': 'none',
+          'dependencies': [
+            'parser_fuzzer',
+          ],
+          'includes': [
+            '../../build/isolate.gypi',
+          ],
+          'sources': [
+            'fuzzer.isolate',
+          ],
+        },
+      ],
+    }],
+  ],
+}