Rule 15.2: MISRA warning is not generated

[William Forbes]

The section at the beginning of the section 6.15 is considered normative and is known by Rule 15.0.
Here, I think you'll find that your example breaks the rule for the syntax of a "case-clause".
Note that the only legal terminating token sequences are

Code:

break ;

or

Code:

break ; }

Your example has

Code:

break ; } }

and thus does not comply (with Rule 15.0).