[not for landing] Debugging gpu failures

gypfiles/features.gypi

 # Copyright 2013 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 11 matching lines @@
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # Compile time controlled V8 features.
 
 {
   'variables': {
-    'v8_enable_disassembler%': 0,
+    'v8_enable_disassembler%': 1,
 
     'v8_enable_gdbjit%': 0,
 
-    'v8_object_print%': 0,
+    'v8_object_print%': 1,
 
     'v8_enable_verify_heap%': 0,
 
     'v8_trace_maps%': 0,
 
     # Enable the snapshot feature, for fast context creation.
     # http://v8project.blogspot.com/2015/09/custom-startup-snapshots.html
     'v8_use_snapshot%': 'true',
 
     'v8_enable_verify_predictable%': 0,
@@ skipping 80 matching lines @@
         },
         'conditions': [
           ['v8_enable_handle_zapping==1', {
             'defines': ['ENABLE_HANDLE_ZAPPING',],
           }],
         ],  # conditions
       },  # Release
     },  # configurations
   },  # target_defaults
 }