Update to ruby/spec@b65d01f

spec/ruby/language/variables_spec.rb

@@ -715,6 +715,18 @@ describe "Multiple assignment" do
       x.should == [1, 2, 3, 4, 5]
     end
 
+    it "can be used to swap array elements" do
+      a = [1, 2]
+      a[0], a[1] = a[1], a[0]
+      a.should == [2, 1]
+    end
+
+    it "can be used to swap range of array elements" do
+      a = [1, 2, 3, 4]
+      a[0, 2], a[2, 2] = a[2, 2], a[0, 2]
+      a.should == [3, 4, 1, 2]
+    end
+
     it "assigns RHS values to LHS constants" do
       module VariableSpecs
         MRHS_VALUES_1, MRHS_VALUES_2 = 1, 2
@@ -770,45 +782,30 @@ describe "A local variable assigned only within a conditional block" do
 end
 
 describe 'Local variable shadowing' do
-  ruby_version_is ""..."2.6" do
-    it "leads to warning in verbose mode" do
-      -> do
-        eval <<-CODE
-          a = [1, 2, 3]
-          a.each { |a| a = 3 }
-        CODE
-      end.should complain(/shadowing outer local variable/, verbose: true)
-    end
-  end
+  it "does not warn in verbose mode" do
+    result = nil
 
-  ruby_version_is "2.6" do
-    it "does not warn in verbose mode" do
-      result = nil
+    -> do
+      eval <<-CODE
+        a = [1, 2, 3]
+        result = a.map { |a| a = 3 }
+      CODE
+    end.should_not complain(verbose: true)
 
-      -> do
-        eval <<-CODE
-          a = [1, 2, 3]
-          result = a.map { |a| a = 3 }
-        CODE
-      end.should_not complain(verbose: true)
-
-      result.should == [3, 3, 3]
-    end
+    result.should == [3, 3, 3]
   end
 end
 
 describe 'Allowed characters' do
-  ruby_version_is "2.6" do
-    # new feature in 2.6 -- https://bugs.ruby-lang.org/issues/13770
-    it 'does not allow non-ASCII upcased characters at the beginning' do
-      -> do
-        eval <<-CODE
-          def test
-            ἍBB = 1
-          end
-        CODE
-      end.should raise_error(SyntaxError, /dynamic constant assignment/)
-    end
+  # new feature in 2.6 -- https://bugs.ruby-lang.org/issues/13770
+  it 'does not allow non-ASCII upcased characters at the beginning' do
+    -> do
+      eval <<-CODE
+        def test
+          ἍBB = 1
+        end
+      CODE
+    end.should raise_error(SyntaxError, /dynamic constant assignment/)
   end
 
   it 'allows non-ASCII lowercased characters at the beginning' do