11 changed type:
2  'enum E' changed:
3    type size hasn't changed
4    1 enumerator deletion:
5      'E::e2' value '1'
6    1 enumerator insertion:
7      'E::e1' value '1'
81 changed declaration:
9  'function void foo(E)' was changed to 'function void foo(E)':
10    parameter 1 of type 'enum E' has sub-type changes:
11      enum type 'enum E' changed, as reported earlier
12