RFR: 8264868: Reduce inclusion of registerMap.hpp and register.hpp

[Ioi Lam]

On Fri, 9 Apr 2021 04:56:32 GMT, David Holmes <dholmes at openjdk.org> wrote:

> Hi Ioi,
> 
> It isn't at all obvious to me how the stackFrameStream refactoring relates to the topic of this RFE. :)
> 
> But I don't see anything amiss, and if it improves build time etc, then it seems fine.
> 
> Thanks,
> David

Thanks for the review!

`StackFrameStream` was the only thing in frame.hpp that needed to use `RegisterMap`. Since `StackFrameStream` is used by only 15 .o files, I moved it to its own header file. This makes possible to decouple frame.hpp with registerMap.hpp.

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PR: https://git.openjdk.java.net/jdk/pull/3384