Fix tslint error

Author: Huachao

src/controllers/requestController.ts

@@ -69,7 +69,7 @@ export class RequestController {
             return;
         }
 
-        let [request, settings] = this._lastRequestSettingTuple;
+        const [request, settings] = this._lastRequestSettingTuple;
 
         // TODO: recover from last request settings
         await this.runCore(request, settings);

src/models/requestParserFactory.ts

@@ -7,8 +7,8 @@ export class RequestParserFactory {
 
     private static readonly curlRegex: RegExp = /^\s*curl/i;
 
-    public static createRequestParser(rawRequest: string): RequestParser
-    public static createRequestParser(rawRequest: string, settings: IRestClientSettings): RequestParser
+    public static createRequestParser(rawRequest: string): RequestParser;
+    public static createRequestParser(rawRequest: string, settings: IRestClientSettings): RequestParser;
     public static createRequestParser(rawHttpRequest: string, settings?: IRestClientSettings): RequestParser {
         settings = settings || SystemSettings.Instance;
         if (RequestParserFactory.curlRegex.test(rawHttpRequest)) {