[gnome-shell] cleanup: Remove unneeded escapes in regex

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

commit e7d44bb3493e100acbefd54af0c0e82db2947808
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Jan 29 23:44:38 2019 +0100

    cleanup: Remove unneeded escapes in regex
    
    . and ) lose their special meaning in character sets, so they don't
    need escaping. The same applies to - when it isn't part of a range.
    
    Spotted by eslint.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/607

 js/misc/jsParse.js   | 4 ++--
 js/ui/messageTray.js | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/js/misc/jsParse.js b/js/misc/jsParse.js
index 2f3f7afff..08ef7d555 100644
--- a/js/misc/jsParse.js
+++ b/js/misc/jsParse.js
@@ -51,7 +51,7 @@ function getCompletions(text, commandHeader, globalCompletionList) {
 // if we encounter anything that isn't a letter, '.', ')', or ']',
 // we should stop parsing.
 function isStopChar(c) {
-    return !c.match(/[\w\.\)\]]/);
+    return !c.match(/[\w.)\]]/);
 }
 
 // Given the ending position of a quoted string, find where it starts
@@ -121,7 +121,7 @@ function getExpressionOffset(expr, offset) {
             return offset + 1;
         }
 
-        if (currChar.match(/[\)\]]/)) {
+        if (currChar.match(/[)\]]/)) {
             offset = findMatchingBrace(expr, offset);
         }
 
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 4007f1b00..fc54f0d10 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -248,7 +248,7 @@ class NotificationApplicationPolicy extends NotificationPolicy {
     _canonicalizeId(id) {
         // Keys are restricted to lowercase alphanumeric characters and dash,
         // and two dashes cannot be in succession
-        return id.toLowerCase().replace(/[^a-z0-9\-]/g, '-').replace(/--+/g, '-');
+        return id.toLowerCase().replace(/[^a-z0-9-]/g, '-').replace(/--+/g, '-');
     }
 
     get enable() {