MJIT: Make it parsable by Solargraph (#6827)

* Revert "Revert "MJIT: Make it parsable by Solargraph""

This reverts commit 8e18761da1932df88bfb6505acbda4740e1b2930.

* Call rb_gc_register_mark_object

1 files changed, 1 insertions, 0 deletions

diff --git a/mjit.rb b/mjit.rb
index ea0946d589..64c1c69c1a 100644
--- a/mjit.rb
+++ b/mjit.rb
@@ -20,6 +20,7 @@ if RubyVM::MJIT.enabled?
     return # miniruby doesn't support MJIT
   end
 
+  RubyVM::MJIT::C = Object.new # forward declaration for mjit/compiler
   require "mjit/c_type"
   require "mjit/instruction"
   require "mjit/compiler"