[Issue 23874] New: -profile=gc segfaults / ICE regression

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23874

          Issue ID: 23874
           Summary: -profile=gc segfaults / ICE regression
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: d.bugs at webfreak.org

reproduction:

reduced.d
```
static if (is(typeof(new Object())))
    void foo()
    {
    }
```

dmd -c -profile=gc reduced.d

currently breaks building msgpack-d / DCD with profile-gc, which is needed for
CI / measuring memory usage in a PR.

Regressed with DMD 2.103.0

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