The Reactor Value resulting from loading the value from the
dereferenced Pointer does not get passed to the Int4 cast constructor
correctly. This happens in 32-bit builds on Visual Studio
2017 (15.3.5), but not in 64-bit builds.

Change-Id: I68e1639ada436c65bb4f3bf9b3ac88d503f10e30
Reviewed-on: https://swiftshader-review.googlesource.com/13554Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>