library crash.

Added casts for size_t values.

- 32/64: number of symbols is now correct
- 64: the 64 bit extra fields are now initialized with some non null
  yet sensible value

frame context.

In SymInitialize, now trying to check if the hProcess is a real live
target or not. If we think it is, try to grasp ELF information from
it.

- better coding for SYMBOL_INFO filling
- some fixes on some fields (parameters)
- now using the max size for symbol info

- Change menu item search algorithm to recurse into a submenu first.
- Fallback to a found submenu if nothing else was found.

Since setting the Progress attribute is done quite frequently, don't
flood the user with messages about it being unimplemented.

D3DRS_MULTISAMPLEANTIALIAS, use GL_SUPPORT correctly.

for the full frames case as well.