[Issue 21426] New: `dup`, `idup` for arrays plus `keys`, `values` for associative arrays: call postblits directly instead of via TypeInfo function pointer

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21426

          Issue ID: 21426
           Summary: `dup`, `idup` for arrays plus `keys`, `values` for
                    associative arrays: call postblits directly instead of
                    via TypeInfo function pointer
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: n8sh.secondary at hotmail.com

Followup to https://issues.dlang.org/show_bug.cgi?id=20741

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