RFR: 8338471: Assert deleted methods not returned by CallInfo

[Coleen Phillimore]

On Wed, 18 Sep 2024 22:39:11 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> CompiledIC can get old methods, but it can't get deleted methods for itable and vtable calls, so add a guarantee and asserts that this cannot happen before dereferencing.  Removed unused function and unnecessary methodHandle operator.
> Tested with tier1-4 and 8 which does a lot of redefinition.

So this was flagged by our source code analysis tool, which ignores asserts and debug only code, which is why I added them as guarantees.

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PR Comment: https://git.openjdk.org/jdk/pull/21075#issuecomment-2363636593