Fix global declarations check (#1101)

* Fix getSubstringCount not properly checking word boundaries

* Remove unused global declarations

dev/lint/global-declarations.js

@@ -22,6 +22,10 @@ const assert = require('assert');
 const {getAllFiles} = require('../util');
 
 
+function escapeRegExp(string) {
+    return string.replace(/[.*+\-?^${}()|[\]\\]/g, '\\$&');
+}
+
 function countOccurences(string, pattern) {
     return (string.match(pattern) || []).length;
 }
@@ -38,13 +42,12 @@ function getNewline(string) {
 }
 
 function getSubstringCount(string, substring) {
-    let start = 0;
     let count = 0;
+    const pattern = new RegExp(`\\b${escapeRegExp(substring)}\\b`, 'g');
     while (true) {
-        const pos = string.indexOf(substring, start);
+        const match = pattern.exec(string);
-        if (pos < 0) { break; }
+        if (match === null) { break; }
         ++count;
-        start = pos + substring.length;
     }
     return count;
 }

ext/bg/js/settings/anki-templates-controller.js

@@ -17,7 +17,6 @@
 
 /* global
  * AnkiNoteBuilder
- * Modal
  * TemplateRendererProxy
  * api
  */

ext/bg/js/settings/backup-controller.js

@@ -17,7 +17,6 @@
 
 /* global
  * DictionaryController
- * Modal
  * OptionsUtil
  * api
  */

ext/bg/js/settings/dictionary-controller.js

@@ -17,7 +17,6 @@
 
 /* global
  * DictionaryDatabase
- * Modal
  * ObjectPropertyAccessor
  * api
  */

ext/bg/js/settings/dictionary-import-controller.js

@@ -18,7 +18,6 @@
 /* global
  * DictionaryDatabase
  * DictionaryImporter
- * Modal
  * ObjectPropertyAccessor
  * api
  */

ext/bg/js/settings/popup-preview-frame.js

@@ -17,7 +17,6 @@
 
 /* global
  * Frontend
- * Popup
  * TextSourceRange
  * api
  * wanakana

ext/bg/js/settings/profile-controller.js

@@ -16,7 +16,6 @@
  */
 
 /* global
- * Modal
  * ProfileConditionsUI
  * api
  */