patch 8.2.2015: Vim9: literal dict #{} is not like any other language

Problem:    Vim9: literal dict #{} is not like any other language.
Solution:   Support the JavaScript syntax.
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index ea9c7c6..970436e 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -416,7 +416,7 @@
 
   var nd: dict<any>
   try
-    nd = {g:anumber: 1}
+    nd = {[g:anumber]: 1}
   catch /E1012:/
     n = 266
   endtry
@@ -459,7 +459,7 @@
   assert_equal(322, n)
 
   try
-    d = {'text': 1, g:astring: 2}
+    d = {text: 1, [g:astring]: 2}
   catch /E721:/
     n = 333
   endtry