patch 8.2.1159: Vim9: no error for missing space after a comma

Problem:    Vim9: no error for missing space after a comma.
Solution:   Check for white space.
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index dd2a8ad..b4e0604 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1014,6 +1014,7 @@
 
   call CheckDefExecFailure(["let x = g:anint[3]"], 'E714:')
   call CheckDefFailure(["let x = g:list_mixed[xxx]"], 'E1001:')
+  call CheckDefFailure(["let x = [1,2,3]"], 'E1069:')
   call CheckDefExecFailure(["let x = g:list_mixed['xx']"], 'E39:')
   call CheckDefFailure(["let x = g:list_mixed[0"], 'E111:')
   call CheckDefExecFailure(["let x = g:list_empty[3]"], 'E684:')
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index a95761f..f923e14 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -571,7 +571,7 @@
 
 def Test_try_catch_fails()
   call CheckDefFailure(['catch'], 'E603:')
-  call CheckDefFailure(['try', 'echo 0', 'catch','catch'], 'E1033:')
+  call CheckDefFailure(['try', 'echo 0', 'catch', 'catch'], 'E1033:')
   call CheckDefFailure(['try', 'echo 0', 'catch /pat'], 'E1067:')
   call CheckDefFailure(['finally'], 'E606:')
   call CheckDefFailure(['try', 'echo 0', 'finally', 'echo 1', 'finally'], 'E607:')