Merge branch '3.4' into 4.4

* 3.4:
  Fix compiler pass phase when extensions that implements CompilerPassInterface are executed
  fix: very_verbose mode shows estimated time

Author: OskarStark

components/console/helpers/progressbar.rst

@@ -150,9 +150,9 @@ level of verbosity of the ``OutputInterface`` instance:
      3/3 [============================] 100%  1 sec
 
     # OutputInterface::VERBOSITY_VERY_VERBOSE (-vv)
-     0/3 [>---------------------------]   0%  1 sec
-     1/3 [=========>------------------]  33%  1 sec
-     3/3 [============================] 100%  1 sec
+     0/3 [>---------------------------]   0%  1 sec/1 sec
+     1/3 [=========>------------------]  33%  1 sec/1 sec
+     3/3 [============================] 100%  1 sec/1 sec
 
     # OutputInterface::VERBOSITY_DEBUG (-vvv)
      0/3 [>---------------------------]   0%  1 sec/1 sec  1.0 MB

components/dependency_injection/compilation.rst

@@ -341,7 +341,7 @@ methods described in :doc:`/service_container/definitions`.
 .. note::
 
     Please note that the ``process()`` method in the extension class is
-    called during the optimization step. You can read
+    called during the ``PassConfig::TYPE_BEFORE_OPTIMIZATION`` step. You can read
     :ref:`the next section <components-di-separate-compiler-passes>` if you
     need to edit the container during another step.