Minor fixes

- Fix a typo in OpenAL
- Fix typo in cellHttp.h
- Unused variables in catch
- Use 64-bit shifts
- Use use_count with shared pointers, unique is depracated and getting removed
- Explicitly cast boolean to int
- Signed/unsigned issues with loop variables
- Fix missing return statement (the code path is unreachable, but compiler wants a return)
- */ ouside of comment
- Fix duplicate layout name

rpcs3/Emu/Memory/vm.cpp

@@ -988,7 +988,7 @@ namespace vm
 					continue;
 				}
 
-				if (must_be_empty && (!it->unique() || (*it)->imp_used(lock)))
+				if (must_be_empty && (it->use_count() != 1 || (*it)->imp_used(lock)))
 				{
 					return *it;
 				}