shouldn't this code at least trigger a warning?

[ketmar via Digitalmars-d-learn]

subj. the code:

  void main () {
    import std.stdio;
    char ch = '!';
    switch (ch) {
      int n = 42;
      case '!': writeln(n, ": wow!"); break;
      default:
    }
  }


i think that such abomination should:
1. be forbidden, or
2. trigger a warning, or
3. execute initializer anyway.

currently the code is allowed, no warnings triggered, yet `n` is 
uninitialized. and having uninitialized variable without "=void" "should 
not be".
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