https://issues.dlang.org/show_bug.cgi?id=19465

          Issue ID: 19465
           Summary: dmd segfaults on endless mixin recursion
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: dkorpel@live.nl

Code:
```
enum string s = "__traits(compiles, mixin(s))";

static if (__traits(compiles, mixin(s))) {
    enum b = 2;
}
```

Output:
Segmentation fault (core dumped)

Concocted example, not something I encountered in actual code. Still, "dmd should never segfault" so filing this as a minor bug.

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