sage.symbolic.function: Remove direct use of cimports from pynac

[mkoeppe]

Similar to what is done in #32391. Mechanical refactoring to use new helper functions defined in sage.symbolic.expression instead of directly cimporting from sage.libs.pynac

Preparation for #32386.

CC: @kliem @tscrim

Component: symbolics

Author: Matthias Koeppe

Branch/Commit: 06e8c31

Reviewer: Jonathan Kliem

Issue created by migration from https://trac.sagemath.org/ticket/32407

[mkoeppe]

Branch: u/mkoeppe/sage_symbolic_function__remove_direct_use_of_cimports_from_pynac

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

50048aa	sage.symbolic.function.Function._register_function: Refactor through new function sage.symbolic.expression.register_or_update_function
a2f97a1	sage.symbolic.function.GinacFunction._register_function: Refactor through sage.symbolic.expression.register_or_update_function

[sagetrac-git]

Commit: a2f97a1

[sagetrac-git]

Changed commit from a2f97a1 to e81e6c7

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

4ac54df	src/sage/symbolic/function.pyx: Replace cimport * by more specific cimport
6f49aee	sage.symbolic.function.Function.__call__: Refactor through new helper function sage.symbolic.expression.call_by_ginac_serial
2f92b90	sage.symbolic.function.Function._register_function: Refactor through new function sage.symbolic.expression.register_or_update_function
e81e6c7	sage.symbolic.function.GinacFunction._register_function: Refactor through sage.symbolic.expression.register_or_update_function

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

d397ef1

sage.symbolic.function: Remove unused imports, cimports

[sagetrac-git]

Changed commit from e81e6c7 to d397ef1

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

1c43dbe

sage.symbolic.function.{GinacFunction,BuiltinFunction}._is_registered: Refactor through new function sage.symbolic.expression.find_registered_function; remove last pynac import

[sagetrac-git]

Changed commit from d397ef1 to 1c43dbe

[mkoeppe]

Changed dependencies from #32391 to none

[mkoeppe]

Author: Matthias Koeppe

[mkoeppe]

Description changed:

--- 
+++ 
@@ -1,4 +1,4 @@
-Similar and in extension of #32391.
+Similar to what is done in #32391. Mechanical refactoring to use new helper functions defined in `sage.symbolic.expression` instead of directly `cimport`ing from `sage.libs.pynac`
 
 Preparation for #32386.
 

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

9d4fe5f

sage.symbolic.function: Remove unused cimport

[sagetrac-git]

Changed commit from 1c43dbe to 9d4fe5f

[kliem]

Reviewer: Jonathan Kliem