[diagnostics] Emit a a note for optional conversion of raw pointers. #4442
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In CSDiag.cpp I previously added a helper, isCastToTypedPointer(), to emit an diagnostics explaining how to migrate UnsafeRawPointer conversion. This commit broadens that diagnostic to handle Optional<UnsafeRawPointer>. rdar:27894255 [3.0 migration] Emit an additional note for conversion
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In CSDiag.cpp I previously added a helper, isCastToTypedPointer(), to emit an
diagnostics explaining how to migrate UnsafeRawPointer conversion. This commit
broadens that diagnostic to handle Optional.
rdar:27894255 [3.0 migration] Emit an additional note for conversion