Update runtime files.
diff --git a/runtime/doc/usr_52.txt b/runtime/doc/usr_52.txt
index 70338e7..1fbd66f 100644
--- a/runtime/doc/usr_52.txt
+++ b/runtime/doc/usr_52.txt
@@ -1,4 +1,4 @@
-*usr_52.txt* For Vim version 8.2. Last change: 2022 May 13
+*usr_52.txt* For Vim version 8.2. Last change: 2022 May 16
VIM USER MANUAL - by Bram Moolenaar
@@ -110,10 +110,10 @@
==============================================================================
*52.3* Functions and types
-Legacy Vim script does have type checking, but this happens at runtime, when
-the code is executed. And it's permissive, often a computation gives an
-unexpected value instead of reporting an error. Thus you can define a
-function and think it's fine, but see a problem only later when it is called: >
+Legacy Vim script only checks types at runtime, when the code is executed.
+And it's permissive, often a computation gives an unexpected value instead of
+reporting an error. Thus you can define a function and think it's fine, but
+see a problem only later when it is called: >
let s:collected = ''
func ExtendAndReturn(add)
let s:collected += a:add
@@ -133,12 +133,16 @@
s:collected += add
return s:collected
enddef
- defcompile
+ disassemble ExtendAndReturn
-Here we use `:defcompile` to do the compilation right away, without it the
+Here we use `:disassemble` to do the compilation right away, without it the
compilation would happen when the function is called. Vim will tell you what
you did wrong: >
- E1013: type mismatch, expected number but got string
+ E1051: Wrong argument type for +
+
+Side note: here the context is legacy script, when using Vim9 script you would
+put `:defcompile` at the end of the script to check for errors in the
+functions defined in it.
Vim9 script is strict, it uses the "+" operator only for numbers and floats.
For string concatenation ".." must be used. This avoids mistakes and avoids