RFR: 8324584: Optimize Symbol and char* handling in ClassLoader [v3]

[David Holmes]

On Thu, 8 Feb 2024 23:35:21 GMT, Matias Saavedra Silva <matsaave at openjdk.org> wrote:

>> The call to `ClassLoader::load_class()` currently takes a Symbol* for the name and later extracts the string only to change it back into a Symbol* inside `ClassLoader::search_module_entries()` while also recalculating the package entry. This patch simply passes the string directly along with the package entry from the caller. Verified with tier1-5 tests.
>
> Matias Saavedra Silva has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Updated copyrights

Just a few requests to explain the pkg_entry role. Thanks

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Changes requested by dholmes (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/17761#pullrequestreview-1871438224