RE: pcase: Semantics of atom QPATS

[Drew Adams]

> Yes and no: the pattern '<anything> is defined to match using (equal
> x '<anything>), no matter what.  In contrast, ` behaves differently
> depending on the type of the backquoted object and it only supports
> a limited set of types (those documented in its docstring).
> 
> So it's normal for the two to behave differently.

Can the behavior being discussed please be documented, if it
is not already?  Thx.