Update files from node

[kfarnung]

• Added node_internals.cc/h to shim missing internal functions

[kfarnung]

@jasongin @mhdawson I split out the node_internals changes from #70.

[kfarnung]

Looks like we finally have a signature issue with node 4:

https://travis-ci.org/kfarnung/node-addon-api/jobs/253006582

> [email protected] pretest /home/travis/build/kfarnung/node-addon-api
> node-gyp rebuild -C test

make: Entering directory `/home/travis/build/kfarnung/node-addon-api/test/build'
  CXX(target) Release/obj.target/node-api/../src/node_api.o
../../src/node_api.cc:625:3: error: no member named 'Get' in 'v8::Persistent<v8::ObjectTemplate, v8::NonCopyablePersistentTraits<v8::ObjectTemplate> >'
  ENV_OBJECT_TEMPLATE(env, function_data, otpl, v8impl::kFunctionFieldCount);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/node_api.cc:58:48: note: expanded from macro 'ENV_OBJECT_TEMPLATE'
      (destination) = env->prefix ## _template.Get(isolate);       \
                      ~~~~~~~~~~~~~~~~~~~~~~~~ ^
../../src/node_api.cc:651:3: error: no member named 'Get' in 'v8::Persistent<v8::ObjectTemplate, v8::NonCopyablePersistentTraits<v8::ObjectTemplate> >'
  ENV_OBJECT_TEMPLATE(env, accessor_data, otpl, v8impl::kAccessorFieldCount);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/node_api.cc:58:48: note: expanded from macro 'ENV_OBJECT_TEMPLATE'
      (destination) = env->prefix ## _template.Get(isolate);       \
                      ~~~~~~~~~~~~~~~~~~~~~~~~ ^
../../src/node_api.cc:2087:3: error: no member named 'Get' in 'v8::Persistent<v8::ObjectTemplate, v8::NonCopyablePersistentTraits<v8::ObjectTemplate> >'
  ENV_OBJECT_TEMPLATE(env, wrap, wrapper_template, 2);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/node_api.cc:58:48: note: expanded from macro 'ENV_OBJECT_TEMPLATE'
      (destination) = env->prefix ## _template.Get(isolate);       \
                      ~~~~~~~~~~~~~~~~~~~~~~~~ ^
3 errors generated.
make: *** [Release/obj.target/node-api/../src/node_api.o] Error 1
make: Leaving directory `/home/travis/build/kfarnung/node-addon-api/test/build'
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/home/travis/.nvs/node/4.8.4/x64/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:276:23)
gyp ERR! stack     at emitTwo (events.js:87:13)
gyp ERR! stack     at ChildProcess.emit (events.js:172:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:211:12)
gyp ERR! System Linux 4.8.12-040812-generic
gyp ERR! command "/home/travis/.nvs/node/4.8.4/x64/bin/node" "/home/travis/.nvs/node/4.8.4/x64/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "-C" "test"
gyp ERR! cwd /home/travis/build/kfarnung/node-addon-api/test
gyp ERR! node -v v4.8.4
gyp ERR! node-gyp -v v3.4.0
gyp ERR! not ok 
npm ERR! Test failed.  See above for more details.


The command "npm test $NPMOPT" exited with 1.

[kfarnung]

Opened a PR in node: nodejs/node#14211

[mhdawson]

LGTM

[kfarnung]

@mhdawson I added the missing macro/functions for your change. I rebased your PR against this code and everything built successfully.

Pushed a branch here for CI run: https://github.com/kfarnung/node-addon-api/tree/n-api-errors

[mhdawson]

Landed as 92d14c0