bug#31350: 27.0; `pcase' message: "Redundant pcase pattern"

[Michael Heerdegen]

Drew Adams <drew.adams@oracle.com> writes:

> Just saying that some previous pcase pattern makes
> this one redundant doesn't tell you which previous
> pattern that does that.  It should.

Note that the message is probably just a byproduct produced by the
current implementation, it's nice to have, but it's limited and might
vanish in the future.  I don't know if the the code knows which of the
branches is the shadowing one.  If I have the time I might have a look.

Michael.