[gjs] (32 commits) ...js: Allow access to modules' lexical scope

[Philip Chimento <pchimento src gnome org>]

Summary of changes:

  f20eacb... build: Build with mozj45 (*)
  fd6f36c... js: new JS_Enumerate API (*)
  ef18c5a... js: Switch from JS::NullPtr() to nullptr (*)
  c4938ec... js: Global object is implicit in many functions (*)
  352883c... js: JSCLASS_IMPLEMENTS_BARRIERS is now implicit (*)
  c0e529c... js: Weak pointer callback API change (*)
  8b498fb... js: setProperty operations with triple result state (*)
  6203c96... js: New JS_IsArrayObject() API (*)
  160872d... js: Rename JS_InternString to JS_AtomizeAndPinString (*)
  758be1e... importer: API change in enumerate operation (*)
  6b14c4c... js: Set JSPROP_RESOLVING when defining properties (*)
  04865ab... modules/console: Update to js::PrintError from upstream (*)
  ba491c2... js: Various API changes for SpiderMonkey 45 (*)
  bc20b77... coverage: Misc Javascript-side API changes (*)
  8e80af0... importer: Seal import with JSPropertyDescriptor directly (*)
  4a477b1... js: Update obsolete comments (*)
  a3d22db... js: Adapt to new JS::TraceEdge<T> API (*)
  d8e98dd... docs: Overview of SpiderMonkey 45 features in NEWS (*)
  239a6c8... build: Build with mozjs52 (*)
  8411078... Windows: Build against SpiderMonkey 52 (*)
  efb622e... js: New JSClass struct layout (*)
  ef6acae... js: Add JSCLASS_FOREGROUND_FINALIZE flag (*)
  3199806... js: Adapt to options changes (*)
  39f4a7a... js: Report warnings and errors with encoding (*)
  751010e... tests: Refactor to avoid error reporter (*)
  34c8449... js: Replace error reporter callbacks (*)
  b98b9f9... js: Replace JSRuntime APIs that now take JSContext (*)
  ec0d714... js: Remove JSRuntime (*)
  331cf87... js: Adapt to misc API changes in SpiderMonkey 52 (*)
  1f3e16b... js: Unbarriered read while in weak ptr callback (*)
  c1525a7... docs: Overview of SpiderMonkey 52 features in NEWS (*)
  a67a936... js: Allow access to modules' lexical scope (*)

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