[Issue 23331] New: implicit cast from noreturn crashes compiler in various ways

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23331

          Issue ID: 23331
           Summary: implicit cast from noreturn crashes compiler in
                    various ways
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: critical
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: Ajieskola at gmail.com

Defining any of these three functions in latest master will crash the compiler:

--------
auto fun(){return double(new noreturn[](0)[0]);}
auto gun(){return double(assert(0));}
auto hun(){return int(assert(0));}
--------

The underlying reason may or may not be same, since a different assertion trips
in the compiler for each, located in different a source file for each of them.

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