* remove `**`
* const `im` can now be used with Complex64
* converters from float|int to Complex are replaced by procs
* converters between various Complex types must stay to allow usage
of `im` with Complex64
* limit types for `+`, `-`, `/`, and `*` between Complex and float
* add `pow` for Complex and a number
* complex type changes
* unpublish approximation function
* Fix result not being able to use in quote do
This fixes the annoying issue of not be able to use result inside a
quote do block. It works by a simple trick. The quote do mechanic is
based on dynamically creating a template and immediately calling it with
the arguments found within the quote do block. Since this is called in
the scope of the macro the result variable is shadowed. This trick works
by changing all occurences of result (which shouldn't cause any issues
as result isn't used for anything else for the same reason) to another
name and then passing in an IdentNode with result as a named parameter
with that name.
Note that currently this just replaces it with a fixed named variable
"res" which should be changed to a non-colliding, dynamically created
name.
* Fix hard coded parameter "res" to anonymous symbol
This fixes the hard coded parameter "res" to be an anonymous symbol
instead so it won't collide with other parts of the argument list.
* Add test case for result in quote do block
A simple test case based on GitHub issue #7323 on how you can't put
result in a quote do block. This test verifies that it actually works
correctly now.
* Add test for explicit capturing of result
* Rebased against devel
