diff -u --label /home/dgutov/examples/antlr/antlr-mode.el --label \#\<buffer\ antlr-mode.el\> /home/dgutov/examples/antlr/antlr-mode.el /tmp/buffer-content-4j5MsU
--- /home/dgutov/examples/antlr/antlr-mode.el
+++ #<buffer antlr-mode.el>
@@ -3408,12 +3408,10 @@
     (when (and boa
                (eq antlr-indent-comment t) ; indent-region
                (boundp 'prog-indentation-context)) ; Emacs 24.5 or later
-      (let ((syntax-ppss-cache nil) ;#dynamic
-            (syntax-ppss-last nil) ;#dynamic
-            ;; TODO: do we also need to call `syntax-propertize'?
-            ;; and/or bind `syntax-propertize-function'?
-            (prog-indentation-context ;#dynamic
-             (list (+ leftouter c-basic-offset) (list (1+ boa)))))
+      (let ((prog-indentation-context ;#dynamic
+             (list (+ leftouter c-basic-offset))))
+        ;; TODO: do we also need to call `syntax-propertize'?
+        ;; and/or bind `syntax-propertize-function'?
         (narrow-to-region (1+ boa) (point-max))
         (python-indent-line (eq this-command 'antlr-indent-command))))))
 

Diff finished.  Sat Dec 16 19:27:17 2017