Add Scala test case

Author: odersky

tests/pos/i2797a/Fork.scala

@@ -0,0 +1,5 @@
+// Test is pending because we have no good way to test it.
+// We need to: Compile Fork.java, and then compile Test.scala
+// with Fork.class on the classpath.
+class Fork(value: Int = -1, jvmArgs: Array[String] = Array("nope"))
+extends annotation.Annotation

tests/pos/i2797a/Test.scala

@@ -0,0 +1,5 @@
+// Test is pending because we have no good way to test it.
+// We need to: Compile Fork.java, and then compile Test.scala
+// with Fork.class on the classpath.
+@Fork(jvmArgs = Array("I'm", "hot"))
+class Test