[gjs] (20 commits) Non-fast-forward update to branch wip/ptomato/mozjs38

[Philip Chimento <pchimento src gnome org>]

The branch 'wip/ptomato/mozjs38' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  f97b42c... docs: Overview of new JS features in NEWS
  e2faf0a... js: AutoValueVector's [] operator is rooted
  e7cc49f... js: Adapt to new JS_NewObject() API
  33855e5... js: Adapt to new JS_DefinePropertyById() API
  d17ef89... js: Rename JS_CallHeapFooTracer()
  4c345d6... js: Discontinue JSClass stubs
  8d4de55... js: Adapt to new JS_SetErrorReporter() API
  67edf12... constructor-proxy: Adapt to new js::DirectProxyHandler API
  6c5350f... runtime: Adapt to new JSFinalizeCallback
  07a06ac... js: Adapt to new mozilla::Maybe API
  ff0f491... js: Adapt to new signature of resolve operation
  5154ce7... js: Accommodate both Latin-1 and two-byte strings
  a4e5620... js: JSNative accessors in JS_DefineProperty()
  6283e49... js: Fix misc APIs for mozjs38
  a45f657... js: Various SpiderMonkey 38 improvements
  be2c9cc... jsapi-util-root: Re-enable test
  f3f4b5e... WIP - js: Update weak pointers after GC
  251e071... WIP - importer: Switch to eager enumeration
  d1232b4... WIP - importer: Switch back to lazy enumeration
  bf6b5b4... CI: upgrade to Mozilla SpiderMonkey 38

Commits added to the branch:

  c81ce72... docs: Overview of new JS features in NEWS
  c3fc9fd... js: AutoValueVector's [] operator is rooted
  1d0db3c... js: Adapt to new JS_NewObject() API
  fb88c2f... js: Adapt to new JS_DefinePropertyById() API
  6b69064... js: Rename JS_CallHeapFooTracer()
  2e218c1... js: Discontinue JSClass stubs
  3966063... js: Adapt to new JS_SetErrorReporter() API
  33cd2e3... constructor-proxy: Adapt to new js::DirectProxyHandler API
  66cd34c... runtime: Adapt to new JSFinalizeCallback
  792455f... js: Adapt to new mozilla::Maybe API
  cd4c8cc... js: Adapt to new signature of resolve operation
  e4d4432... js: Accommodate both Latin-1 and two-byte strings
  c0e556a... js: JSNative accessors in JS_DefineProperty()
  d7975e6... js: Fix misc APIs for mozjs38
  6b46054... js: Various SpiderMonkey 38 improvements
  4d74727... jsapi-util-root: Re-enable test
  d3ca3ba... WIP - js: Update weak pointers after GC
  7bc2fee... WIP - importer: Switch to eager enumeration
  79db721... WIP - importer: Switch back to lazy enumeration
  2198f53... CI: upgrade to Mozilla SpiderMonkey 38