Merge pull request #2309 from Shopify/ko/bootsnap-super

Only call `load_iseq` if it's defined

Author: KaanOzkan

lib/tapioca/rbs/rewriter.rb

@@ -26,7 +26,7 @@ module ISeq
         module InstructionSequenceMixin
           #: (String) -> RubyVM::InstructionSequence
           def load_iseq(path)
-            super
+            super if defined?(super)
           end
         end
       end