box: fix format of _vfunc

The _vfunc system space is the sysview for the _func system space.
However, the _vfunc format is different from the _func format. This
patch makes the _vfunc format the same as the _func format.

Closes #7822

NO_DOC=bugfix

(cherry picked from commit 707da125)

changelogs/unreleased/gh-7822-fix-_vfunc-format.md

+## bugfix/box
+
+* Format of _vfunc is now the same as the format of _func (gh-7822).

src/box/lua/upgrade.lua

@@ -1247,8 +1247,14 @@ local function revoke_execute_access_to_lua_function_from_role_public()
     end
 end
 
+local function make_vfunc_same_format_as_func()
+    log.info("Make format of _vfunc the same as the format of _func")
+    box.space._vfunc:format(box.space._func:format())
+end
+
 local function upgrade_to_2_10_4()
     revoke_execute_access_to_lua_function_from_role_public()
+    make_vfunc_same_format_as_func()
 end
 --------------------------------------------------------------------------------
 

test/box-luatest/func_test.lua

@@ -113,3 +113,10 @@ g.test_msgpack_object_args = function()
     t.assert(g.server:eval('return box.func.check_persistent.takes_raw_args'))
     t.assert(g.server:eval('return box.func.decode_persistent.takes_raw_args'))
 end
+
+g.test_gh_7822_vfunc_format = function()
+    g.server:exec(function()
+        local t = require('luatest')
+        t.assert_equals(box.space._vfunc:format(), box.space._func:format())
+    end)
+end

test/box-py/bootstrap.result

@@ -63,7 +63,14 @@ box.space._space:select{}
         'type': 'string'}, {'name': 'last_altered', 'type': 'string'}]]
   - [297, 1, '_vfunc', 'sysview', 0, {}, [{'name': 'id', 'type': 'unsigned'}, {'name': 'owner',
         'type': 'unsigned'}, {'name': 'name', 'type': 'string'}, {'name': 'setuid',
-        'type': 'unsigned'}]]
+        'type': 'unsigned'}, {'name': 'language', 'type': 'string'}, {'name': 'body',
+        'type': 'string'}, {'name': 'routine_type', 'type': 'string'}, {'name': 'param_list',
+        'type': 'array'}, {'name': 'returns', 'type': 'string'}, {'name': 'aggregate',
+        'type': 'string'}, {'name': 'sql_data_access', 'type': 'string'}, {'name': 'is_deterministic',
+        'type': 'boolean'}, {'name': 'is_sandboxed', 'type': 'boolean'}, {'name': 'is_null_call',
+        'type': 'boolean'}, {'name': 'exports', 'type': 'array'}, {'name': 'opts',
+        'type': 'map'}, {'name': 'comment', 'type': 'string'}, {'name': 'created',
+        'type': 'string'}, {'name': 'last_altered', 'type': 'string'}]]
   - [304, 1, '_user', 'memtx', 0, {}, [{'name': 'id', 'type': 'unsigned'}, {'name': 'owner',
         'type': 'unsigned'}, {'name': 'name', 'type': 'string'}, {'name': 'type',
         'type': 'string'}, {'name': 'auth', 'type': 'map'}]]