[gnome-shell] lint: Enforce camelCase

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit f6bed089939fce78b7fa0f97a4e9e189d60df3ae
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Jan 28 05:52:24 2019 +0100

    lint: Enforce camelCase
    
    All variables should be in camelCase, so configure the corresponding
    rule to enforce this. Exempt properties for now, to accommodate the
    existing practice of using C-style underscore names for construct
    properties of introspected objects.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/609

 lint/eslintrc-shell.json | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/lint/eslintrc-shell.json b/lint/eslintrc-shell.json
index c5bed8690..194966b13 100644
--- a/lint/eslintrc-shell.json
+++ b/lint/eslintrc-shell.json
@@ -1,5 +1,12 @@
 {
     "rules": {
+        "camelcase": [
+            "error",
+            {
+                "properties": "never",
+                "allow": ["^vfunc_", "^on_"]
+            }
+        ],
         "object-curly-spacing": [
             "error",
             "always"