Use TOPLEVEL_BINDING in rails runner command

Binding to capture the local scope. This means that if a constant with same
name as constant specified by the user exists in local scope, constant
defined in local will use. This is different from what the user expects.
Therefore, fixed to use top-level binding instead of local scope.

Fixes #30644

railties/lib/rails/commands/runner/runner_command.rb

@@ -32,13 +32,13 @@ def perform(code_or_file = nil, *command_argv)
         ARGV.replace(command_argv)
 
         if code_or_file == "-"
-          eval($stdin.read, binding, "stdin")
+          eval($stdin.read, TOPLEVEL_BINDING, "stdin")
         elsif File.exist?(code_or_file)
           $0 = code_or_file
           Kernel.load code_or_file
         else
           begin
-            eval(code_or_file, binding, __FILE__, __LINE__)
+            eval(code_or_file, TOPLEVEL_BINDING, __FILE__, __LINE__)
           rescue SyntaxError, NameError => error
             $stderr.puts "Please specify a valid ruby command or the path of a script to run."
             $stderr.puts "Run '#{self.class.executable} -h' for help."

railties/test/application/runner_test.rb

@@ -128,5 +128,17 @@ def test_environment_with_rack_env
         assert_match "production", rails("runner", "puts Rails.env")
       end
     end
+
+    def test_can_call_same_name_class_as_defined_in_thor
+      app_file "app/models/task.rb", <<-MODEL
+      class Task
+        def self.count
+          42
+        end
+      end
+      MODEL
+
+      assert_match "42", rails("runner", "puts Task.count")
+    end
   end
 end