Add dump c-syntactic-context in test

Author: zonuexe

tests/php-mode-test.el

@@ -67,6 +67,7 @@ be processed."
                (let ((current-offset (current-indentation)))
                  (unless (eq current-offset offset)
                    (list :line (line-number-at-pos)
+                         :context c-syntactic-context
                          :expected offset
                          :actual current-offset))))))
     (let (directives answers)