https://issues.dlang.org/show_bug.cgi?id=21756

          Issue ID: 21756
           Summary: Immutable array literals cause runtime GC allocation
                    instead of static readonly section allocation
           Product: D
           Version: D2
          Hardware: All
               URL: http://dlang.org/
                OS: All
            Status: NEW
          Severity: major
          Priority: P3
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: eyal@weka.io

auto f() { return "abc"; } // @nogc, cheap

auto g() { return ['a', 'b', 'c']; } // allocates via GC, at runtime

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