Enable no-var-keyword tslint rule

extensions/html-language-features/server/src/modes/embeddedSupport.ts

@@ -18,7 +18,7 @@ export interface HTMLDocumentRegions {
 	getImportedScripts(): string[];
 }
 
-export var CSS_STYLE_RULE = '__';
+export const CSS_STYLE_RULE = '__';
 
 interface EmbeddedRegion { languageId: string | undefined; start: number; end: number; attributeValue?: boolean; }
 

extensions/html-language-features/server/src/modes/htmlMode.ts

@@ -78,7 +78,7 @@ export function getHTMLMode(htmlLanguageService: HTMLLanguageService, workspace:
 }
 
 function merge(src: any, dst: any): any {
-	for (var key in src) {
+	for (const key in src) {
 		if (src.hasOwnProperty(key)) {
 			dst[key] = src[key];
 		}

extensions/html-language-features/server/src/modes/languageModes.ts

@@ -67,7 +67,7 @@ export interface LanguageModeRange extends Range {
 
 export function getLanguageModes(supportedLanguages: { [languageId: string]: boolean; }, workspace: Workspace, customTags?: ITagSet, customAttributes?: IAttributeSet): LanguageModes {
 
-	var htmlLanguageService = getHTMLLanguageService({
+	const htmlLanguageService = getHTMLLanguageService({
 		customTags,
 		customAttributes
 	});

extensions/html-language-features/server/src/utils/arrays.ts

@@ -5,7 +5,7 @@
 
 export function pushAll<T>(to: T[], from: T[]) {
 	if (from) {
-		for (var i = 0; i < from.length; i++) {
+		for (let i = 0; i < from.length; i++) {
 			to.push(from[i]);
 		}
 	}

extensions/html-language-features/server/src/utils/strings.ts

@@ -52,7 +52,7 @@ export function endsWith(haystack: string, needle: string): boolean {
 }
 
 export function repeat(value: string, count: number) {
-	var s = '';
+	let s = '';
 	while (count > 0) {
 		if ((count & 1) === 1) {
 			s += value;