RFR: JDK-8267916: Make as_CompilerThread consistent with other as_*_thread methods

[David Holmes]

On Fri, 28 May 2021 08:09:36 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Simple refactoring around `as_CompilerThread`. A new file, `compilerThread.inline.hpp`, is created to get around the circular dependency.

Sorry I looked at this too late at night:

>  if we haven't factored out CompilerThread into its own header

but we do of course have that.

-------------

PR: https://git.openjdk.java.net/jdk/pull/4240