https://issues.dlang.org/show_bug.cgi?id=15962

          Issue ID: 15962
           Summary: [REG2.069] Don't strip off asserts to check internal
                    compiler errors
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: ice
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: k.hara.pg@gmail.com

>From 2.069, dmd code base is switched to D. But today, a released dmd is
compiled with -release switch. It means, the built dmd binary no longer contain any asserts.

By that, all internal errors in front end no longer reported. Actually it would hide some serious regressions.

See issue 15961 as a real example.

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