layers: Add handle NULL checks to codegen
Add support for validating that required handle parameters are not
specified as VK_NULL_HANDLE to the parameter validation layer's code
generator.
- Add new parameter validation utility functions to validate required
handles and arrays of handles.
- Add new parameter validation layer entrypoints for functions that
previously had no parameters to validate.
- Add handle validation logic to the parameter validation code generator.
Change-Id: I7a5680954245db4c1b12587f78e30e17c3903d6c
3 files changed