[Issue 13900] New: A dup-ped associative array can't be assigned to immutable

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13900

          Issue ID: 13900
           Summary: A dup-ped associative array can't be assigned to
                    immutable
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: enhancement
          Priority: P1
         Component: DMD
          Assignee: nobody at puremagic.com
          Reporter: bearophile_hugs at eml.cc

void main() {
    int[int] aa1 = [1:2];
    immutable aa2 = aa1.dup;
}


dmd 2.067alpha gives:

temp.d(3,24): Error: cannot implicitly convert expression (dup(aa1)) of type
int[int] to immutable(int[int])

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