1.1.8.13. osx.cocoa.NSError (ObjC)
Check usage of NSError parameters.

Examples:

@interface A : NSObject
- (void)foo:(NSError """""""""""""""""""""""")error;
@end

@implementation A
- (void)foo:(NSError """""""""""""""""""""""")error {
  // warn: method accepting NSError"""""""""""""""""""""""" should have a non-void
  // return value
}
@end

@interface A : NSObject
- (BOOL)foo:(NSError """""""""""""""""""""""")error;
@end

@implementation A
- (BOOL)foo:(NSError """""""""""""""""""""""")error {
  *error = 0; // warn: potential null dereference
  return 0;
}
@end