Expose a ForeignErrorConvention::Info struct, so that the
ClangImporter can also utilize this space-efficient
storage. Eliminates the ClangImporter's ad-hoc representation, and
shaves off a pointer or so off of the ImportedName size.
While we're out it, make some of the bools bitfields to shave off
another pointer in size. Total ImportedName size is now 6.
Add a new convention to describe what happens with
nonzero_result on a type that isn't imported as Bool.
This isn't really a safe convention to implement, but
calls are fine.
Implements <rdar://21715350>.
Swift SVN r29953
For some reason this was only breaking with initializers, and not
ordinary methods, where there was both a throwing and non-throwing
version of the same method.
Fixes <rdar://problem/20922973>.
Swift SVN r28534
preserve the original method name.
This heuristic is based on the Objective-C selector and therefore
doesn't really handle factory methods that would conflict with
initializers, but we can hope that those simply don't come up in
the wild.
It's not clear that this is the best thing to do --- it tends to
promote the non-throwing API over what's probably a newer, throwing
API --- but it's significantly easier, and it unblocks code without
creating deployment problems.
Swift SVN r28066
