Fix issue where generic compare on float values would be different …

[cristianoc]

…from the compare for type float

Fixes #6040

[glennsl]

Unfortunately still fails on a few cases:

  eq __LOC__ (generic_lessthan Js.Float._NaN 4.2) false;
  eq __LOC__ (generic_greaterthan 4.2 Js.Float._NaN) false;
  eq __LOC__ (generic_lessequal Js.Float._NaN Js.Float._NaN) false;
  eq __LOC__ (generic_lessequal Js.Float._NaN 4.2) false;
  eq __LOC__ (generic_greaterequal Js.Float._NaN Js.Float._NaN) false;
  eq __LOC__ (generic_greaterequal 4.2 Js.Float._NaN) false;

These are all in #6044

[glennsl]

This will also affect min and max, which also uses compare, although the docs do state that "The result is unspecified if one of the arguments contains the float value nan." So perhaps this doesn't matter too much.

[cristianoc]

@glennsl should be OK now.

[glennsl]

Perfect. Thanks! 🙂