8003280: Add lambda tests

Turn on lambda expression, method reference and default method support

Reviewed-by: jjg

langtools/test/tools/javac/lambda/BadStatementInLambda.java

@@ -0,0 +1,19 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8003280
+ * @summary Add lambda tests
+ *  check that the compiler emits meaningful diagnostics when the lambda body contains bad statements
+ * @author  Maurizio Cimadamore
+ * @compile/fail/ref=BadStatementInLambda.out -XDrawDiagnostics BadStatementInLambda.java
+ */
+
+class BadStatementInLambda {
+
+    interface SAM{
+        Object m();
+    }
+
+    SAM t1 = ()-> { null; };
+    SAM t2 = ()-> { 1; };
+    SAM t3 = ()-> { 1 + 5; };
+}