Merge PR #353: Update regexTypes import

Author: nene

src/lexer/Tokenizer.ts

@@ -1,6 +1,6 @@
 import { Token, TokenType } from 'src/lexer/token';
 import * as regex from 'src/lexer/regexFactory';
-import * as regexTypes from 'src/lexer/regexTypes';
+import type * as regexTypes from 'src/lexer/regexTypes';
 import { equalizeWhitespace } from 'src/utils';
 
 import { escapeRegExp } from './regexUtil';