Add a dedicated error code for missing function ID

Flag: android.app.appfunctions.flags.enable_app_function_manager
Test: CTS
Bug: 375121362
Change-Id: I917df5c09090e549dade1c666e3d2ccaa8e8ac92
diff --git a/libs/appfunctions/api/current.txt b/libs/appfunctions/api/current.txt
index 89cdba8..faf84a8 100644
--- a/libs/appfunctions/api/current.txt
+++ b/libs/appfunctions/api/current.txt
@@ -52,9 +52,10 @@
     field public static final int RESULT_CANCELLED = 2001; // 0x7d1
     field public static final int RESULT_DENIED = 1000; // 0x3e8
     field public static final int RESULT_DISABLED = 1002; // 0x3ea
-    field public static final int RESULT_INTERNAL_ERROR = 2000; // 0x7d0
+    field public static final int RESULT_FUNCTION_NOT_FOUND = 1003; // 0x3eb
     field public static final int RESULT_INVALID_ARGUMENT = 1001; // 0x3e9
     field public static final int RESULT_OK = 0; // 0x0
+    field public static final int RESULT_SYSTEM_ERROR = 2000; // 0x7d0
   }
 
 }