Lang Hames a49b05bb61 [JITLink][MachO] Use correct symbol scope when N_PEXT is set and N_EXT unset. ...

MachOLinkGraphBuilder has been treating these as hidden, but they should be
treated as local.

Symbols with N_PEXT set and N_EXT unset are produced when hidden symbols are
run through 'ld -r' without passing -keep_private_externs. They will show up
under 'nm -m' as "was private extern", hence the name of the test cases.

Testcase commited as relocatable object to ensure that the test suite doesn't
depend on having 'ld -r' available.

2020-08-15 15:53:33 -07:00

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