[gjs] (7 commits) Non-fast-forward update to branch wip/ptomato/mozjs52

[Philip Chimento <pchimento src gnome org>]

The branch 'wip/ptomato/mozjs52' 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:

  9f5193f... js: Add JSCLASS_FOREGROUND_FINALIZE flag
  e9c3e67... js: Replace JSRuntime APIs that now take JSContext
  666bb7e... js: Report warnings and errors with encoding
  43edbd3... js: Adapt to options changes
  4a628ee... js: Adapt to misc API changes in SpiderMonkey 52
  807150f... WIP - js: Remove JSRuntime
  80dae35... WIP - fixup error reporting

Commits added to the branch:

  d3313b6... js: Add JSCLASS_FOREGROUND_FINALIZE flag
  bd61ea9... js: Replace JSRuntime APIs that now take JSContext
  768d3b1... js: Report warnings and errors with encoding
  70ec9b5... js: Adapt to options changes
  8b232f1... js: Adapt to misc API changes in SpiderMonkey 52
  10d7428... WIP - js: Remove JSRuntime
  6723c2a... WIP - fixup error reporting