RFR: 8357739: [jittester] disable the hashCode method

[Leonid Mesnik]

On Tue, 17 Jun 2025 19:49:34 GMT, Evgeny Nikitin <enikitin at openjdk.org> wrote:

> JITTester often uses the `hasCode` method (in fact, in almost every generated test). Given that the method can be unstable between runs or in interpreted vs compiled runs, it can create false-positives.
> 
> This PR fixes the issue by adding support for method templates similar to the ones used in CompilerCommands). All of those exclude templates match (and exclude) `String.indexOf(String)`, for example:
> 
> java/lang/::*(Ljava/lang/String;I)
> *String::indexOf(*)
> java/lang/*::indexOf
> 
> 
> Additionally, the PR adds support for comments (starting from '#') and empty lines in the excludes file.

Marked as reviewed by lmesnik (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/25859#pullrequestreview-2979848692