Don't emit warning when the pattern of one-line pattern matching is just a variable pattern

https://github.com/ruby/dev-meeting-log/blob/master/DevelopersMeeting20201210Japan.md#feature-17371-reintroduce-expr-in-pat-ktsj

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/ruby/command_line/dash_upper_w_spec.rb b/spec/ruby/command_line/dash_upper_w_spec.rb
index 62c617b892..b705638606 100644
--- a/spec/ruby/command_line/dash_upper_w_spec.rb
+++ b/spec/ruby/command_line/dash_upper_w_spec.rb
@@ -33,11 +33,11 @@ ruby_version_is "2.7" do
   describe "The -W command line option with :no-experimental" do
     before do
       ruby_version_is ""..."3.0" do
-        @src = 'case 0; in a; end'
+        @src = 'case [0, 1]; in [a, b]; end'
       end
 
       ruby_version_is "3.0" do
-        @src = '1 => a'
+        @src = '[0, 1] => [a, b]'
       end
     end