fixup! Add julia parser

An initialized field (cur_token) of lexer is accessed in following control flow:

initLexer()
=> advanceToken():

            if (isOperator(lexer->cur_token))
            {
                return lexer->cur_token;
            }
            return lexer->cur_token = TOKEN_NEWLINE;

parsers/julia.c

@@ -844,6 +844,7 @@ static void initLexer (lexerState *lexer)
     advanceNChar(lexer, 2);
     lexer->token_str = vStringNew();
     lexer->first_token = true;
+    lexer->cur_token = TOKEN_NONE;
 
     if (lexer->cur_c == '#' && lexer->next_c == '!')
     {