Integrated: 8264797: Do not include klassVtable.hpp from instanceKlass.hpp

[Ioi Lam]

On Tue, 6 Apr 2021 17:07:23 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> instanceKlass.hpp is a popular header, included by 647 of about 1000 HotSpot .o files. It unnecessarily includes klassVtable.hpp (only forward class declarations are needed).
> 
> After refactoring, the number of .o files that includes klassVtable.hpp reduces from 647 to 132.

This pull request has now been integrated.

Changeset: c3abdc9a
Author:    Ioi Lam <iklam at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/c3abdc9a
Stats:     6 lines in 5 files changed: 5 ins; 1 del; 0 mod

8264797: Do not include klassVtable.hpp from instanceKlass.hpp

Reviewed-by: coleenp, stefank

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PR: https://git.openjdk.java.net/jdk/pull/3360