...Fix Issue 23940 - std.getopt does not assert with options that only d…" fixing this...

...ID: 23940
           Summary: std.getopt does not assert with options that only
                    differ in case...

...t. For example:

```d
unittest
{
    int x;
    assert(x == 1);
}
void main() {}
```

Compiled with ldc...

...unsigned char` is only 8-bit.)

An `assert(false)` leading to dead code is indeed...

...lets me inject assert(false) expressions during development:

void foo() {
  someCode();

  assert(false, "some information...

thanks for the tips, can not use issues.dlang.org.  if some one have account...

...that fails is an intended breaking: `static assert(__traits(isSame, (e), 3))` (where `e` is...

...ref  int function()  ) { }

static assert(!is( typeof(&a) == typeof(&b) ));
static assert( is( typeof(&a...

Report to https://issues.dlang.org/. That's probably a problem with how stat_t...

Runtime assert doesn't work at module scope. Also, it's usually better to catch...