Add spec for capture/non-capture for it in blocks

Author: enebo

language/block_spec.rb

@@ -1069,3 +1069,11 @@ def all_kwrest(arg1, arg2, *rest, post1, post2, kw1: 1, kw2: 2, okw1:, okw2:, **
     end
   end
 end
+
+describe "`it` is a captured variable in a block if `it` is outside" do
+  ruby_version_is "3.3"..."3.4" do
+    proc { it }.call(0).should eq(0)
+    it = 5
+    proc { it }.call(0).should eq(5)
+  end
+end