[gjs] Created tag 1.58.3

[Philip Chimento <pchimento src gnome org>]

The unsigned tag '1.58.3' was created.

Tagger: Philip Chimento <philip chimento gmail com>
Date: 1574705151 -0800

    Version 1.58.3
    
    - Emergency release, intended to correct two mistakes in 1.58.2, both coming
      from crash fixes that had unexpected other effects on working code.
      Distributors shipping 1.58.2 are urged to update to 1.58.3 as soon as
      possible.
    
    - Closed bugs and merge requests:
      * possible regression in gjs 1.58.2 [Philip Chimento, #288]
      * JS ERROR: TypeError: this._rooms.get(...) is undefined [Philip Chimento,
        #289, !366]

Changes since the last tag '1.58.2':

Philip Chimento (6):
      build: Post-release version bump
      Revert "object: Throw if constructing an unregistered object inheriting from GObject"
      Revert "private: Don't pass argv to for_js_typecheck and use result for later"
      Revert "testGObjectClass: Verify the usage of GObject classes with wrong base"
      arg: Allow empty flat arrays of structs
      release: Prepare for 1.58.3