[Issue 22228] New: [CTFE] taking address of immutable in frame function causes ICE on Unix platforms

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22228

          Issue ID: 22228
           Summary: [CTFE] taking address of immutable in frame function
                    causes ICE on Unix platforms
           Product: D
           Version: D2
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: Ajieskola at gmail.com

---
auto f()
{   immutable int i;
    auto p = (() => &i)();

    return 0;
}

enum ctfeInvocation = f;
---

This results in an ICE on latest DMD:s if running with Linux, FreeBSD or
Darwin. It has regressed only recently, probably after latest stable release as
I'm unable to reproduce on run.dlang.io

Blocking https://github.com/dlang/phobos/pull/8202

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