patch 8.2.1333: Vim9: memory leak when using nested global function

Problem:    Vim9: memory leak when using nested global function.
Solution:   Swap from and to when copying the lines.
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 28937a1..7298d9a 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -133,6 +133,12 @@
   CheckDefFailure(['func Nested()', 'endfunc'], 'E1086:')
 enddef
 
+func Test_call_default_args_from_func()
+  call assert_equal('string', MyDefaultArgs())
+  call assert_equal('one', MyDefaultArgs('one'))
+  call assert_fails('call MyDefaultArgs("one", "two")', 'E118:')
+endfunc
+
 def Test_nested_global_function()
   let lines =<< trim END
       vim9script
@@ -141,25 +147,20 @@
               return 'inner'
           enddef
       enddef
-#      Outer()
-#      assert_equal('inner', g:Inner())
-#      delfunc g:Inner
-#      Outer()
-#      assert_equal('inner', g:Inner())
-#      delfunc g:Inner
-#      Outer()
-#      assert_equal('inner', g:Inner())
-#      delfunc g:Inner
+      defcompile
+      Outer()
+      assert_equal('inner', g:Inner())
+      delfunc g:Inner
+      Outer()
+      assert_equal('inner', g:Inner())
+      delfunc g:Inner
+      Outer()
+      assert_equal('inner', g:Inner())
+      delfunc g:Inner
   END
   CheckScriptSuccess(lines)
 enddef
 
-func Test_call_default_args_from_func()
-  call assert_equal('string', MyDefaultArgs())
-  call assert_equal('one', MyDefaultArgs('one'))
-  call assert_fails('call MyDefaultArgs("one", "two")', 'E118:')
-endfunc
-
 func TakesOneArg(arg)
   echo a:arg
 endfunc