Update comment.

Author: starcke

extensions/ql-vscode/src/language-context-store.ts

@@ -43,14 +43,24 @@ export class LanguageContextStore extends DisposableObject {
     );
   }
 
-  // shouldInclude should return true if the given language should be included.
-  // That means that either the given language is selected or the "All" option is selected.
+  /**
+   * This returns true if the given language should be included.
+   *
+   * That means that either the given language is selected or the "All" option is selected.
+   *
+   * @param language a query language or undefined if the language is unknown.
+   */
   public shouldInclude(language: QueryLanguage | undefined): boolean {
     return this.languageFilter === "All" || this.languageFilter === language;
   }
 
-  // isSelectedLanguage returns true if the given language is selected. If no language
-  // is given then it returns true if the "All" option is selected.
+  /**
+   * This returns true if the given language is selected.
+   *
+   * If no language is given then it returns true if the "All" option is selected.
+   *
+   * @param language a query language or undefined.
+   */
   public isSelectedLanguage(language: QueryLanguage | undefined): boolean {
     return (
       (this.languageFilter === "All" && language === undefined) ||