Don't apply relocations to non page-aligned binaries.

The DirectDraw cube mapping interface has a few pitfalls. So far we have
a test testing the surface enumeration, this adds a rendering test. So
far everything used in the test works.

This is needed on both windows and wine, seems to be a hardware thing.

Support the synonyms for these and existing calling conventions.

Support automatically setting the calling convention to 
STDMETHODCALLTYPE if it is part of an object interface.

Write out the calling convention in write_type_v.

This clarifies its use in code and makes it simpler to change the way 
functions are parsed into types.