RFR: 8309671: Avoid using jvmci.Compiler property to determine if Graal is enabled

[Doug Simon]

On Fri, 9 Jun 2023 05:26:59 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

> Is JVMCI used by the Graal compiler only?

So far this is true and will probably remain true for the foreseeable future. However, the Right Thing to do long term is to add a `jdk.test.whitebox.code.Compiler.uncommonTrapsHavePreciseBCIs()` method.

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PR Comment: https://git.openjdk.org/jdk/pull/14381#issuecomment-1584480496