[gjs] (28 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:

  8734b0c... js: Implement barriers correctly in structs
  29158e7... function: Two wrappers in GjsCallbackTrampoline
  5b6bc00... keep-alive: Update hash keys when objects move
  2f1fb6a... jsapi-util: Use JS_PutEscapedString()
  8b269a9... context: Empty heap wrapper after removing tracer
  355e70d... boxed: Use JSNative property accessors
  db90163... format: More fixes for standard String.replace()
  873dd38... js: Refactor gjs_object_*_property()
  10c42d8... context: Root interned strings
  6f0096b... build: Build with mozjs38
  665f264... js: AutoValueVector's [] operator is rooted
  9c0c55e... js: Adapt to new JS_NewObject() API
  f8d7d2c... js: Adapt to new JS_DefinePropertyById() API
  9a68400... js: Rename JS_CallHeapFooTracer()
  6c576fe... js: Discontinue JSClass stubs
  093271d... js: Adapt to new JS_SetErrorReporter() API
  23f2634... constructor-proxy: Adapt to new js::DirectProxyHandler API
  d561d71... runtime: Adapt to new JSFinalizeCallback
  f5c4608... js: Adapt to new mozilla::Maybe API
  fc2e8c9... js: Adapt to new signature of resolve operation
  9b7f2fe... js: Accommodate both Latin-1 and two-byte strings
  772cda4... js: JSNative accessors in JS_DefineProperty()
  56004fd... js: Fix misc APIs for mozjs38
  4636b78... WIP - object.cpp weak pointer callback
  2971201... WIP - Switch to new JSClass.enumerate

Commits added to the branch:

  b8c7195... installed-tests: check if stack is defined (*)
  d94eaaf... CI: add travis continuous integration (*)
  f0b2c14... js: Implement barriers correctly in structs
  dec13d5... function: Two wrappers in GjsCallbackTrampoline
  71a48ca... keep-alive: Update hash keys when objects move
  726e1a9... jsapi-util: Use JS_PutEscapedString()
  14f7028... context: Empty heap wrapper after removing tracer
  a65197d... boxed: Use JSNative property accessors
  41bef65... format: More fixes for standard String.replace()
  c107c53... js: Refactor gjs_object_*_property()
  054dc0e... context: Root interned strings
  5368760... keep-alive: Remove custom hash table handling
  eadc8f8... build: Build with mozjs38
  55436f9... js: AutoValueVector's [] operator is rooted
  5d7c506... js: Adapt to new JS_NewObject() API
  223efcc... js: Adapt to new JS_DefinePropertyById() API
  ac0e278... js: Rename JS_CallHeapFooTracer()
  3dbd0fd... js: Discontinue JSClass stubs
  d99ec36... js: Adapt to new JS_SetErrorReporter() API
  32db3a8... constructor-proxy: Adapt to new js::DirectProxyHandler API
  84b8a8a... runtime: Adapt to new JSFinalizeCallback
  b7f2134... js: Adapt to new mozilla::Maybe API
  09ca33f... js: Adapt to new signature of resolve operation
  2ec5b29... js: Accommodate both Latin-1 and two-byte strings
  e17a208... js: JSNative accessors in JS_DefineProperty()
  af0fb8e... js: Fix misc APIs for mozjs38
  5174bea... WIP - Switch to new JSClass.enumerate
  43c638e... WIP - weak pointers

(*) This commit already existed in another branch; no separate mail sent