patch 8.2.1183: assert_fails() checks the last error message
Problem: assert_fails() checks the last error message.
Solution: Check the first error, it is more relevant. Fix all the tests
that rely on the old behavior.
diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index a63779a..6cde5dd 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -34,8 +34,8 @@
assert_fails('disass NotCompiled', 'E1062:')
assert_fails('disass', 'E471:')
assert_fails('disass [', 'E475:')
- assert_fails('disass 234', 'E475:')
- assert_fails('disass <XX>foo', 'E475:')
+ assert_fails('disass 234', 'E129:')
+ assert_fails('disass <XX>foo', 'E129:')
let res = execute('disass s:ScriptFuncLoad')
assert_match('<SNR>\d*_ScriptFuncLoad.*' ..