8003280: Add lambda tests

Turn on lambda expression, method reference and default method support

Reviewed-by: jjg

langtools/test/tools/javac/lambda/lambdaExpression/InvalidExpression1.java

@@ -0,0 +1,17 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8003280
+ * @summary Add lambda tests
+ *   Test invalid lambda expressions
+ * @compile/fail/ref=InvalidExpression1.out -XDrawDiagnostics InvalidExpression1.java
+ */
+
+import java.util.Comparator;
+
+public class InvalidExpression1 {
+
+    void test() {
+        Comparator<Number> c = (Number n1, Number n2)-> { 42; }; //not a statement
+        Comparator<Number> c = (Number n1, Number n2)-> { return 42 }; //";" expected
+    }
+}