Function gl::GetDebugMessageLog

pub unsafe fn GetDebugMessageLog(
    count: GLuint, 
    bufSize: GLsizei, 
    sources: *mut GLenum, 
    types: *mut GLenum, 
    ids: *mut GLuint, 
    severities: *mut GLenum, 
    lengths: *mut GLsizei, 
    messageLog: *mut GLchar
) -> GLuint

Fallbacks: GetDebugMessageLogARB, GetDebugMessageLogKHR