[Issue 17876] New: Internal error with red black tree of array of arrays

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17876

          Issue ID: 17876
           Summary: Internal error with red black tree of array of arrays
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: ovejacuantica at gmail.com

Not sure if a problem with phobos or druntime.

import std.container.rbtree;
void main () {
    auto a = redBlackTree!(size_t [][]);
}

With command 'dmd file' or 'ldc file' (DMD 2.076.0 and LDC 1.4.0) gives:

/usr/include/dlang/dmd/object.d(3462): Error: static assert  "Internal error."
/usr/include/dlang/dmd/std/functional.d-mixin-201(201):        instantiated
from here: __cmp!(const(ulong[]), ulong[])
/usr/include/dlang/dmd/std/container/rbtree.d(866):        instantiated from
here: binaryFun!(inout(ulong[][]), ulong[][])
/usr/include/dlang/dmd/std/container/rbtree.d(1832):        instantiated from
here: RedBlackTree!(ulong[][], "a < b", false)

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