RFR: 8292059: Do not inline InstanceKlass::allocate_instance() [v2]

[Afshin Zafari]

On Mon, 6 Mar 2023 13:36:00 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

> What is the motivation to change the parameter from `oop java_class` to `InstanceKlass*`? The call sites are now much noisier and harder to read.

This is changed to gain performance when this function is called many times.

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PR: https://git.openjdk.org/jdk/pull/12782