Actual integer function parameter not being coerced in the presence of a real parameter?

[dbenn]

The following:

f(x:real) { x*x }

f(4)

yields:

F (REAL) has no return type but a value of type INTEGER was returned.

Since the actual parameter 4 should have been coerced from an integer into a real, the message should be:

F (REAL) has no return type but a value of type REAL was returned.

This suggests a problem with type coercion from actual to formal parameters.

[dbenn]

Also need to handle real and integer conversion to string.

[dbenn]

I think I may be mutating actual parameters (which could be bound to variables) in the process of type conversion. Will test and confirm including adding a regression test.

Need to copy operands on mutation and replace in the actual parameter list.

[dbenn]

Fixed now