[Issue 18260] New: ICE on template this parameter and alias this

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18260

          Issue ID: 18260
           Summary: ICE on template this parameter and alias this
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Keywords: ice
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: simen.kjaras at gmail.com

The following code causes DMD to hang:

struct R {
    int[] arr;

    alias get this;
    R get(this This)() {
        return R.init;
    }
}
unittest {
    const(R) b = const(R).init;
}

As far as my testing shows, every line is necessary, and arr must be a dynamic
array. Changing get() to assert(false) instead of return, removes the bug.

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