Support RBS 3.2.0

Author: mame

Gemfile.lock

@@ -11,7 +11,7 @@ GEM
     docile (1.4.0)
     power_assert (2.0.1)
     rake (13.0.1)
-    rbs (3.0.2)
+    rbs (3.2.0)
     simplecov (0.21.2)
       docile (~> 1.1)
       simplecov-html (~> 0.11)

smoke/integer.rb

@@ -7,5 +7,5 @@ def foo(x); end
 # Classes
 class Object
   private
-  def foo: (Integer x) -> nil
+  def foo: (Integer? x) -> nil
 end

smoke/type_var.rb

@@ -1,5 +1,5 @@
 def number?(ty)
-  %w[integer float].include?(ty).then { puts 1 }
+  %w[integer float].include?(ty).then { nil }
 end
 number?('string')