[libc++][test] Move abi.compile.pass.cpp to libcxx subdirectory (#76349)

This test file mainly asserts the implementation details of libc++, so
it should be in the `libcxx` subdirectory.
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A. Jiang 2023-12-25 17:18:28 +08:00 committed by GitHub
parent fe21b3941d
commit 03b774762a
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