RFR: 8252684: Move the AArch64 assember test under test/hotspot/gtest

[Nick Gasson]

On Fri, 27 Nov 2020 09:28:30 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

> 
> I now wonder if we could even get a step further and have the Python script generate the entirety of `test/hotspot/gtest/aarch64/test_assembler_aarch64.cpp`. It would be about adding just the copyright, the headesr `#include`, and some glue code. That would make it easier to regenerate the file instead of depending on a copy-paste.

I suppose it doesn't need to generate the whole file: the Python script can just write its output to a file that gets `#include`d into `test_assembler_aarch64.cpp`.

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PR: https://git.openjdk.java.net/jdk/pull/1476