Tests that Runtime.evaluate can run without side effects.
Test throwOnSideEffect: false
{
    id : <messageId>
    result : {
        result : {
            description : 2
            type : number
            value : 2
        }
    }
}
Test expression with side-effect, with throwOnSideEffect: true
{
    id : <messageId>
    result : {
        exceptionDetails : {
            columnNumber : -1
            exception : {
                className : EvalError
                description : EvalError: Possible side-effect in debug-evaluate
                objectId : <objectId>
                subtype : error
                type : object
            }
            exceptionId : <exceptionId>
            lineNumber : -1
            scriptId : <scriptId>
            text : Uncaught
        }
        result : {
            className : EvalError
            description : EvalError: Possible side-effect in debug-evaluate
            objectId : <objectId>
            subtype : error
            type : object
        }
    }
}
Test expression without side-effect, with throwOnSideEffect: true
{
    id : <messageId>
    result : {
        result : {
            description : 4
            type : number
            value : 4
        }
    }
}
Test that debug break triggers without throwOnSideEffect
paused
{
    id : <messageId>
    result : {
        result : {
            description : 2
            type : number
            value : 2
        }
    }
}
Test that debug break does not trigger with throwOnSideEffect
{
    id : <messageId>
    result : {
        result : {
            description : 2
            type : number
            value : 2
        }
    }
}