test: update postmortem metadata test

[cjihrig]

This commit updates the following postmortem metadata constants:

• v8dbg_class_Map__inobject_properties_or_constructor_function_index__int
  • This is now v8dbg_class_Map__inobject_properties_start_or_constructor_function_index__char as of v8/v8@61bf2cc
• v8dbg_class_Map__instance_attributes__int
  • This is now v8dbg_class_Map__instance_type__uint16_t as of v8/v8@c00bb6d and v8/v8@cb46310
• v8dbg_class_Map__instance_size__int
  • This is now v8dbg_class_Map__instance_size_in_words__char as of v8/v8@61bf2cc
• v8dbg_bit_field3_dictionary_map_shift
  • This is now v8dbg_bit_field3_is_dictionary_map_shift as of v8/v8@7a159da

Fixes: #33

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• commit message follows commit guidelines

Affected core subsystem(s)

[targos]

Thanks! Quick check: https://ci.nodejs.org/job/node-test-commit-light/41/

[cjihrig]

There was a failure in the CI, but unrelated.

[joyeecheung]

Should we document the changes, say, in the Wiki?

[targos]

Thanks, landed in nodejs/node@358a628 and nodejs/node@034b64b.
I split the commit because some of the changes are needed for V8 6.4.

[cjihrig]

Should we document the changes, say, in the Wiki?

I'm inclined to say no, simply because wikis get forgotten about and out of sync. I'm hoping to achieve the same thing in the commit log for the metadata test moving forward though.