RFR: 8329201: C2: Replace TypeInterfaces::intersection_with() + eq() with contains()

[Roland Westrelin]

On Thu, 4 Apr 2024 11:09:07 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

> This patch replaces all `TypeInterfaces::intersection_with()` + `eq()` usages with a simpler `contains()` call which does the same.
> 
> Thanks,
> Christian

Looks good to me.

-------------

Marked as reviewed by roland (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18620#pullrequestreview-1980425769