[Issue 22930] importC: switch statement should use default:break; if no default specified

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22930

Walter Bright <bugzilla at digitalmars.com> changed:

           What    |Removed                     |Added
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                 CC|                            |bugzilla at digitalmars.com
            Summary|importC: switch statement   |importC: switch statement
                   |gives bogus unreachable     |should use default:break;
                   |code warning                |if no default specified

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