PARI: allow non-gen as "self" argument for __pow__

[jdemeyer]

sage: int(2)^pari(2.5)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-1-bbaff70c173b> in <module>()
----> 1 int(Integer(2))**pari(RealNumber('2.5'))

TypeError: Argument 'self' has incorrect type (expected sage.libs.pari.gen.gen, got int)

We should probably also implement modular __pow__ and fix a few other operators with the same problem.

CC: @pjbruin

Component: interfaces

Author: Jeroen Demeyer

Branch/Commit: u/jdemeyer/ticket/15785 @ 3be0702

Reviewer: David Roe

Issue created by migration from https://trac.sagemath.org/ticket/15785

[jdemeyer]

Branch: u/jdemeyer/ticket/15785

[jdemeyer]

Commit: 3be0702

[jdemeyer]

New commits:

3be0702

PARI: fix pow, mod and shift operators

[roed314]

comment:4

The patchbot is complaining about a failed merge, but it can't be too bad, since the branch displays as merging cleanly. I'm happy with the code changes and give it a positive review, subject to tests passing.

[roed314]

Reviewer: David Roe

[jdemeyer]

comment:5

The patchbot's complaints clearly have nothing to do with this ticket.