RFR: 8356390: Rename ResolvedIndyEntry::set_flags to set_has_appendix [v2]

[Johan Sjölen]

On Fri, 9 May 2025 11:39:52 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> While you're here, resolution_failed should have a named bit as well as has_appendix. I wonder if you can use C++ bit syntax too since SA doesn't read these flags.

As the interpreter reads the `_flag` through `flag_offset`, let's not do this.

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PR Comment: https://git.openjdk.org/jdk/pull/25092#issuecomment-2866259090