[IR] add testdata for irJsText

compiler/testData/ir/irJsText/external/kt38765.kt.txt

@@ -0,0 +1,37 @@
+package events
+
+open external class internal {
+  external constructor() /* primary */ 
+  open external class EventEmitterP : internal {
+    external constructor() /* primary */ 
+
+  }
+
+  open external class EventEmitterS : internal {
+    external constructor(a: Any) 
+
+  }
+
+  external object NestedExternalObject : internal {
+    private external constructor() /* primary */ 
+
+  }
+
+  external enum class NestedExternalEnum : Enum<NestedExternalEnum> {
+    private external constructor() /* primary */ 
+    A = NestedExternalEnum()
+
+    B = NestedExternalEnum()
+
+    fun values(): Array<NestedExternalEnum> /* Synthetic body for ENUM_VALUES */
+
+    fun valueOf(value: String): NestedExternalEnum /* Synthetic body for ENUM_VALUEOF */
+
+  }
+
+  external interface NestedExternalInterface {
+
+  }
+
+}
+