* doc/plugins.texi (enum plugin_event): New event.
        * plugin.c (register_callback): Handle PLUGIN_START_PARSE_FUNCTION
        and PLUGIN_FINISH_FUNCTION.
        * plugin.def (PLUGIN_START_PARSE_FUNCTION): Add plugin event
        (PLUGIN_FINISH_PARSE_FUNCTION): Likewise.

cp/

        * decl.c (start_function): Call plugin before parsing.
        (finish_function): Call plugin after parsing.

c/

        * c-decl.c (start_function): Call plugin before parsing.
        (finish_function): Call plugin after parsing.

testsuite/

        * g++.dg/plugin/plugin.exp: Add def-plugin-test.C.
        * g++.dg/plugin/def_plugin.c: New file.
        * g++.dg/plugin/def-plugin-test.C: New file.

From-SVN: r224078