patch 8.2.4572: Vim9: return type "any" is changed to first returned type
Problem: Vim9: return type "any" is sometimes changed to first returned
type. (Virginia Senioria)
Solution: Do not change the return type if declared as "any". (closes #9949)
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 8c99ad4..06f135a 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -535,6 +535,30 @@
v9.CheckScriptSuccess(lines)
enddef
+def Test_return_any_two_types()
+ var lines =<< trim END
+ vim9script
+
+ def G(Fn: func(string): any)
+ g:result = Fn("hello")
+ enddef
+
+ def F(a: number, b: string): any
+ echo b
+ if a > 0
+ return 1
+ else
+ return []
+ endif
+ enddef
+
+ G(function(F, [1]))
+ END
+ v9.CheckScriptSuccess(lines)
+ assert_equal(1, g:result)
+ unlet g:result
+enddef
+
func s:Increment()
let g:counter += 1
endfunc