RFR: 8274329: Fix non-portable HotSpot code in MethodMatcher::parse_method_pattern

[Jie Fu]

On Tue, 28 Sep 2021 13:56:42 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

> > Thanks for your suggestions, @JornVernee .
> > I tested the above patch, but it still failed. (rm build -rf; bash configure ..; make images)
> 
> Ok, that's unfortunate. Thanks for testing.

Let's see what others think of the change.

Hope the non-ascii code is actually not used.
Then we can safely remove it.
Thanks.

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PR: https://git.openjdk.java.net/jdk/pull/5704