[gjs: 3/5] lint: Restrict deprecated Lang API

[Philip Chimento <pchimento src gnome org>]

commit cbf36f6d2819987253d52d5c1edbac4e8aedcebc
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Feb 19 21:33:05 2019 +0100

    lint: Restrict deprecated Lang API
    
    Both Lang.Class and Lang.bind are considered legacy, and the ES5/6
    replacements should be used instead.
    
    https://gitlab.gnome.org/GNOME/gjs/merge_requests/272
    
    [skip eslint] as this will change the eslint outcome.

 .eslintrc.json | 13 +++++++++++++
 1 file changed, 13 insertions(+)
---
diff --git a/.eslintrc.json b/.eslintrc.json
index 06dfe1ee..85d198be 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -58,6 +58,19 @@
                 "allow": ["!!"]
             }
         ],
+        "no-restricted-properties": [
+            "error",
+            {
+                "object": "Lang",
+                "property": "bind",
+                "message": "Use arrow notation or Function.prototype.bind()"
+            },
+            {
+                "object": "Lang",
+                "property": "Class",
+                "message": "Use ES6 classes"
+            }
+        ],
         "nonblock-statement-body-position": [
             "error",
             "below"