Add new version of DynamicArrayHandle::CastToArrayHandle
This takes a reference to an array handle and fills it. This removes a lot of the pain of determining template arguments.
See merge request !205
C and C++ has a funny feature where operations on small integers (char
and short) actually promote the result to a 32 bit integer. Most often
in our code the result is pushed back to the same type, and picky compilers
can then give a warning about an implicit type conversion (that we
inevitably don't care about). Here are a lot of changes to suppress
the warnings.
The test was creating a large array on the stack, and this caused a
problem on Windows for some reason. Instead of putting the array on
the stack, use an std::vector. Also reduced the size of the array
used. It seemed unnecessarily large.
Also re-enabled the tests where VTK-m allocates its own ArrayHandle
data.
