
This fixes defects as follows: 1. handleLvalue could be called on a non-L-value, and it shouldn't be. 2. HLSL allows unary negation on non-bool values. TUnaryOperator::promote can now promote other types (e.g, int, float) to bool for this op. 3. HLSL allows binary logical operations (&&, ||) on arbitrary types, similar (2). 4. HLSL allows mod operation on arbitrary types, which will be promoted. E.g, int % float -> float % float.