[Issue 15682] New: concat associative arrays

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15682

          Issue ID: 15682
           Summary: concat associative arrays
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: b2.temp at gmx.com

With performance in mind.
To allow this:

---
string[string]aa0,aa1;
void main()
{
    aa0~=aa1;
} 
---

instead of writing a loop.

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