[MacPorts] #65355: lldb-10: builds failing for ARM: fix, or set known_fail

[MacPorts]

#65355: lldb-10: builds failing for ARM: fix, or set known_fail
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  Reporter:  mascguy  |      Owner:  mascguy
      Type:  defect   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.7.2
Resolution:  fixed    |   Keywords:  arm
      Port:  lldb-10  |
----------------------+---------------------

Comment (by jmroot):

 I would really just remove arm64 from supported_archs for all of llvm-10,
 since even if it builds there are going to be runtime problems. It was
 added originally as a stopgap measure, and the reasons for doing so no
 longer apply. [4a95522133a10539e4ca53fe025cbaa91961bd43/macports-ports]

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Ticket URL: <https://trac.macports.org/ticket/65355#comment:4>
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