RFR: 8280593: [PPC64, S390] redundant allocation of MacroAssembler in StubGenerator ctor

[Martin Doerr]

On Tue, 25 Jan 2022 16:41:33 GMT, Richard Reingruber <rrich at openjdk.org> wrote:

> This cleanup removes a redundant allocation from the StubGenerator constructor. The base class' constructor does the very same.
> 
> The fix passed our CI testing.

Looks good! Thanks for cleaning it up!
Feel free to remove the extra whitespace from the `StubCodeGenerator` constructor `new MacroAssembler(code )` (optional).

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Marked as reviewed by mdoerr (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/7215