Badly indented comments cause parsing failure

[dmishin]

Here is an example:

def func(flow):
# select port kind
    print 'Please'

This causes an exception with unexpected token:

baron.parser.ParsingError: Error, got an unexpected token STRING here:

   1 
   2 def func():
   3 # select port kind
   4     print 'Please'<---- here

The token STRING should be one of those: AMPER, AMPER_EQUAL, AND, AT, AT_EQUAL, CIRCUMFLEX, CIRCUMFLEX_EQUAL, COLON, COMMA, COMMENT, DEF, DOT, DOUBLE_SLASH, DOUBLE_SLASH_EQUAL, DOUBLE_STAR, DOUBLE_STAR_EQUAL, ENDL, EQUAL, EQUAL_EQUAL, FOR, GREATER, GREATER_EQUAL, IF, IN, IS, LEFT_PARENTHESIS, LEFT_SHIFT, LEFT_SHIFT_EQUAL, LEFT_SQUARE_BRACKET, LESS, LESS_EQUAL, MINUS, MINUS_EQUAL, NOT, NOT_EQUAL, OR, PERCENT, PERCENT_EQUAL, PLUS, PLUS_EQUAL, RIGHT_SHIFT, RIGHT_SHIFT_EQUAL, SEMICOLON, SLASH, SLASH_EQUAL, SPACE, STAR, STAR_EQUAL, VBAR, VBAR_EQUAL, WITH

Indenting the comment fixes the problem. This code works well in python.