STC: no error for incorrect parameter type if not referenced in lambda

            @groovy.transform.CompileStatic
            void test1() {
                java.util.stream.IntStream.range(0, 2).forEach(
                    (Integer i) -> {  } // no reference to "i"
                )
            }
            @groovy.transform.CompileStatic
            void test2() {
                java.util.stream.IntStream.range(0, 2).forEach(
                    (String s) -> { assert false } // no reference to "s"
                )
            }