Report errors in javascript property getters/setters
Report errors in javascript property getters/setters

When writing a Lang.Class with gobject properties, gjs will
call getters and setters on your properties with JS_GetProperty
and JS_SetProperty.

These calls can fail if there's an error in the resulting javascript,
and failures were being silently ignored. Now we report errors
immediately and clear them from SpiderMonkey's pending exceptions.

https://bugzilla.gnome.org/show_bug.cgi?id=730101

endlessm/gjs,endlessm/gjs,endlessm/gjs,endlessm/gjs,endlessm/gjs