Add test for NegativeArraySizeException

The new test is similar to NegativeArraySizeException1 (was called
NegativeArraySizeException before the previous commit). It checks that a
NegativeArraySizeException is correctly caught if the catch block
specifies one of its superclasses.

regression/cbmc-java/NegativeArraySizeException2/NegativeArraySizeExceptionTest.java

@@ -0,0 +1,10 @@
+public class NegativeArraySizeExceptionTest {
+  public static void main(String args[]) {
+      try {
+          int a[]=new int[-1];
+      }
+      catch (Exception exc) {
+          assert false;
+      }
+  }
+}

regression/cbmc-java/NegativeArraySizeException2/java/lang/NegativeArraySizeException.java

@@ -0,0 +1,4 @@
+package java.lang;
+
+public class NegativeArraySizeException extends RuntimeException {
+}

regression/cbmc-java/NegativeArraySizeException2/java/lang/RuntimeException.java

@@ -0,0 +1,4 @@
+package java.lang;
+
+public class RuntimeException extends Exception {
+}

regression/cbmc-java/NegativeArraySizeException2/test.desc

@@ -0,0 +1,9 @@
+CORE
+NegativeArraySizeExceptionTest.class
+--java-throw-runtime-exceptions
+^EXIT=10$
+^SIGNAL=0$
+^.*assertion at file NegativeArraySizeExceptionTest.java line 7 function.*: FAILURE$
+^VERIFICATION FAILED$
+--
+^warning: ignoring