fix: follow up comments

Signed-off-by: yihong0618 <zouzou0208@gmail.com>

Author: yihong0618

Lib/_pyrepl/utils.py

@@ -210,8 +210,7 @@ def gen_colors_from_token_stream(
                     yield ColorSpan(span, "soft_keyword")
                 elif (
                     token.string in BUILTINS
-                    and not (prev_token and prev_token.type == T.OP
-                                        and prev_token.string == ".")):
+                    and not (prev_token and prev_token.exact_type == T.DOT)):
                     span = Span.from_token(token, line_lengths)
                     yield ColorSpan(span, "builtin")