patch 8.2.0149: maintaining a Vim9 branch separately is more work
Problem: Maintaining a Vim9 branch separately is more work.
Solution: Merge the Vim9 script changes.
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index b580f2f..071f250 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -12,6 +12,10 @@
done, the features in this document are not available. See |+eval| and
|no-eval-feature|.
+This file is about the backwards compatible Vim script. For Vim9 script,
+which executes much faster, supports type checking and much more, see
+|vim9.txt|.
+
1. Variables |variables|
1.1 Variable types
1.2 Function references |Funcref|
@@ -2512,8 +2516,8 @@
or |:tcd|
hasmapto({what} [, {mode} [, {abbr}]])
Number |TRUE| if mapping to {what} exists
-histadd({history}, {item}) String add an item to a history
-histdel({history} [, {item}]) String remove an item from a history
+histadd({history}, {item}) Number add an item to a history
+histdel({history} [, {item}]) Number remove an item from a history
histget({history} [, {index}]) String get the item {index} from a history
histnr({history}) Number highest index of a history
hlexists({name}) Number |TRUE| if highlight group {name} exists
@@ -10894,6 +10898,9 @@
functions. The function executes a sequence of Ex commands. Normal mode
commands can be executed with the |:normal| command.
+This section is about the legacy functions. For the Vim9 functions, which
+execute much faster, support type checking and more, see |vim9.txt|.
+
The function name must start with an uppercase letter, to avoid confusion with
builtin functions. To prevent from using the same name in different scripts
avoid obvious, short names. A good habit is to start the function name with