[Test] Use DUMP_EXTERNAL_CLASS instead of invalid DUMP_DEPENDENCIES directive in ir text tests

compiler/testData/ir/irText/stubs/javaEnum.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// !DUMP_DEPENDENCIES
+// DUMP_EXTERNAL_CLASS: JEnum
 // FILE: JEnum.java
 
 public enum JEnum {
@@ -8,4 +8,4 @@ public enum JEnum {
 
 // FILE: javaEnum.kt
 
-val test = JEnum.ONE
+val test = JEnum.ONE