Problem when all the base class's overloaded methods were
overridden in the derived class - fixes "multiply defined" errors.
Linked lists of the overloaded methods were not set up correctly
when handling the using declaration.
Closes#2244
The compiler calls setWindowGrab(bool) instead of setWindowsGrab(NativeWindowType*)
and gives a warning with Visual C++ when calling setWindowGrab(true)
with a pointer to ApplicationContextSDL.
Looks like function function hiding of the non-virtual method.
I can't see this changing testing of the original bug.
Fix using declaration in derived class incorrectly introducing a method
from a base class when the using declaration is declared before the method
declaration. Problem occurred when within a namespace and the parameter types
in the method signatures were not fully qualified.
Issue #1441
