Bob Wilson 4890a43e8b Temporarily comment out code to set runtime function attributes. ...

Before my change in e24a6f1d30, the previous code did nothing. I saw the
comment but did not think it really meant what it says. My change
caused the function attributes to be set and that led to all sorts of
mayhem. E.G., I know for sure that the “swift_dynamicCast” entry should
not be ReadOnly because it returns its result by assigning through one
of its arguments. We need to audit the attributes for those runtime
functions before we can turn this on (tracked in rdar://problem/20802330)

2017-05-15 11:54:02 -07:00

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