pakmanaged.js
function parseExpressionStatement() {
            var marker = markerCreate(), expr = parseExpression();
            consumeSemicolon();
            return markerApply(marker, delegate.createExpressionStatement(expr));
        }
function parseExpressionStatement() {
            var marker = markerCreate(), expr = parseExpression();
            consumeSemicolon();
            return markerApply(marker, delegate.createExpressionStatement(expr));
        }
12.4 Expression Statement