[gjs] (22 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:

  6bb97c6... js: Refactor dual use of JS::Heap wrapper
  a6c9b78... WIP - make closure lifetime less complicated?
  9312b38... build: Build with mozjs38
  48f662f... docs: Overview of new JS features in NEWS
  1c8acd6... js: AutoValueVector's [] operator is rooted
  9d44f82... js: Adapt to new JS_NewObject() API
  8b16813... js: Adapt to new JS_DefinePropertyById() API
  a7adb51... js: Rename JS_CallHeapFooTracer()
  45947c2... js: Discontinue JSClass stubs
  f97f3b3... js: Adapt to new JS_SetErrorReporter() API
  b4e27cc... constructor-proxy: Adapt to new js::DirectProxyHandler API
  0241ddc... runtime: Adapt to new JSFinalizeCallback
  5d3d3be... js: Adapt to new mozilla::Maybe API
  a0e6030... js: Adapt to new signature of resolve operation
  ea76929... js: Accommodate both Latin-1 and two-byte strings
  70f1d87... js: JSNative accessors in JS_DefineProperty()
  d5b548d... js: Fix misc APIs for mozjs38
  944a6a6... js: Various SpiderMonkey 38 improvements
  40f2112... WIP - weak pointers
  3b55d57... WIP - Switch to new JSClass.enumerate
  d4046c6... WIP - early define props

Commits added to the branch:

  4bad8c2... coverage: Stop using JSUnit in tests
  ab399bf... js: Be careful about undefined property accesses
  5ad1e05... js: Refactor dual use of JS::Heap wrapper
  7991ab1... WIP - make closure lifetime less complicated?
  bd4b5a7... build: Build with mozjs38
  b67e18d... docs: Overview of new JS features in NEWS
  dc78173... js: AutoValueVector's [] operator is rooted
  d74fae9... js: Adapt to new JS_NewObject() API
  da281d4... js: Adapt to new JS_DefinePropertyById() API
  de044fd... js: Rename JS_CallHeapFooTracer()
  9ebdc47... js: Discontinue JSClass stubs
  5d3ac34... js: Adapt to new JS_SetErrorReporter() API
  3c17ca0... constructor-proxy: Adapt to new js::DirectProxyHandler API
  0ccf2d7... runtime: Adapt to new JSFinalizeCallback
  bec759d... js: Adapt to new mozilla::Maybe API
  640177e... js: Adapt to new signature of resolve operation
  4f65646... js: Accommodate both Latin-1 and two-byte strings
  2063ad3... js: JSNative accessors in JS_DefineProperty()
  0a0d286... js: Fix misc APIs for mozjs38
  88e9439... js: Various SpiderMonkey 38 improvements
  357e33c... WIP - weak pointers
  eb9b0e4... WIP - Switch to new JSClass.enumerate