Estimated hours taken: 3
Regression tests for 2 bugs.
Mmake:
Add these two tests.
ho_func_reg.m:
ho_func_reg.exp:
Check for correct creation of references to higher order
function types with arity other than two.
float_reg.m:
float_reg.exp:
Check for correct creation of floating point constants with
a + in their exponent.
