[Issue 399] New: -w misses unreacheable "case" statement

[BCS]

> 
> 
> # import std.stdio;
> # 
> # int main(char[][] args){
> #     switch(args.length){
> #         case 2:
> #             writefln("case 2");
> #             goto case 1000;
> #         default:
> #             writefln("default");
> #             break;
> #         case 1000:
> #             writefln("case 1000 (reachable)");
> #             break;
> #         case 3: // line 14
> #             writefln("case 3 (statement is not reachable)");
> #             break;
> #     }
> # 
> #     return 0;
> # }
> 
> "dmd -w test.d" fails to report lines 14 to 16 as unreachable.
> 
> 

given $test a b

args.length == 3

Or am I missing something??