Support checkcast instruction for array

eval4j/src/org/jetbrains/eval4j/jdi/jdiEval.kt

@@ -38,7 +38,7 @@ class JDIEval(
     }
 
     override fun isInstanceOf(value: Value, targetType: Type): Boolean {
-        assert(targetType.getSort() == Type.OBJECT, "Can't check isInstanceOf() for non-object type $targetType")
+        assert(targetType.getSort() == Type.OBJECT || targetType.getSort() == Type.ARRAY, "Can't check isInstanceOf() for non-object type $targetType")
 
         val _class = loadClass(targetType)
         return invokeMethod(

eval4j/test/org/jetbrains/eval4j/test/TestData.java

@@ -459,4 +459,8 @@ class TestData {
             }
         return s;
     }
+
+    static void castToArray() {
+        int[] i = (int[]) null;
+    }
 }