Operator overload. Check for operator overload, if so, replace with function call.
expression with operator
context
if not null, is set to the operator that was actually overloaded, which may not be e.op. Happens when operands are reversed to match an overload
null if not an operator overload, otherwise the lowered expression
See Implementation
Operator overload. Check for operator overload, if so, replace with function call.