[Issue 3632] modify float is float to do a bitwise compare

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=3632

Nathan S. <n8sh.secondary at hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |n8sh.secondary at hotmail.com
         Resolution|FIXED                       |---

--- Comment #37 from Nathan S. <n8sh.secondary at hotmail.com> ---
This was incorrectly marked fixed. `float is float` is still not a bitwise
comparison.

---
import std.math : isIdentical;
assert(!isIdentical(float.nan, -float.nan)); // passes
assert(float.nan is -float.nan); // also passes
---

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