[test] [MCJIT] Don't overwrite config.unsupported to False

[mstorsjo]

Summary

An outer directory may have set config.unsupported to True for
a different reason, separate from architecture concerns - we
shouldn't force it back to False just because one criterion is
fulfilled.

This is a preparatory step before a second patch.

[lhames]

LGTM. Thanks @mstorsjo!

[sgraenitz]

LGTM too. Is this still up-to-date?

[mstorsjo]

In D149995#4542391, @sgraenitz wrote:

LGTM too. Is this still up-to-date?

I believe so. This was needed for D149996 - which was solved differently and turned out to not be needed in the end. But I guess this cleanup is useful in any case, so I should go ahead and land it.

llvm/test/ExecutionEngine/MCJIT/lit.local.cfg

 root = config.root
 targets = root.targets
-if (
+if not (
     ("X86" in targets)
     | ("AArch64" in targets)
     | ("ARM" in targets)
     | ("Mips" in targets)
     | ("PowerPC" in targets)
     | ("SystemZ" in targets)
 ):
-    config.unsupported = False
-else:
     config.unsupported = True
 
 # FIXME: autoconf and cmake produce different arch names. We should normalize
 # them before getting here.
 if root.host_arch not in [
     "i386",
     "x86",
     "x86_64",
     "AMD64",
     "AArch64",
     "ARM",
+    "armv7",
     "Mips",
     "PowerPC",
     "ppc64",
     "ppc64le",
     "SystemZ",
 ]:
     config.unsupported = True
 
-if "armv7" in root.host_arch:
-    config.unsupported = False
-
 if "i386-apple-darwin" in root.target_triple:
     config.unsupported = True
 
 if "powerpc" in root.target_triple and not "powerpc64" in root.target_triple:
     config.unsupported = True
 
 # ExecutionEngine tests are not expected to pass in a cross-compilation setup.
 if "native" not in config.available_features:
     config.unsupported = True