refactor: strictly typed

src/parser/html-token.ts

@@ -1,8 +1,8 @@
 import Token from './token'
 
 export default class HTMLToken extends Token {
-  constructor (str, begin, input, file, line) {
-    super(str, begin, input, file, line)
+  constructor (str: string, input: string, line: number, col: number, file?: string) {
+    super(str, input, line, col, file)
     this.type = 'html'
     this.value = str
   }