newExpressions.expression(x._new());
JSBlock memberExpressions = newExpressions.block();
memberExpressions.expression(codeModel.function());
JSFunctionExpression.Function foo = codeModel.function("foo");
JSVariable a = foo.parameter("a");
JSVariable b = foo.parameter("b");
JSVariable c = foo.parameter("c");
foo.getBody().expression(a.plus(b));
foo.getBody()._return(c);