Ruby

CI: Adjust time frame before the release

Initialize class dup/clone before calling initialize_dup/initialize_clone

Previously, you could override the class initialize_dup/initialize_clone
method and the class hierarchy would not be set correctly inside the
method before calling super.

This removes Module#initialize_copy, and instead makes Object#dup/clone...

Add NODE SCLASS locations

Add locations to struct RNode_SCLASS.

memo:

@ ProgramNode (location: (1,0)-(1,18))
+-- locals: []
+-- statements:
    @ StatementsNode (location: (1,0)-(1,18))
    +-- body: (length: 1)
        +-- @ SingletonClassNode (location: (1,0)-(1,18))...

object.c: make rb_obj_class_must static inline

object.c: refactor rb_obj_class and rb_class_real

Kernel#class skip null check

Kernel#class can't possibly be called on an hidden object,
hence we don't need to check for klass == 0.

compare-ruby: ruby 3.5.0dev (2025-08-30T01:45:42Z obj-class 01a57bd6cd) +YJIT +PRISM [arm64-darwin24]
built-ruby: ruby 3.5.0dev (2025-08-30T10:21:10Z obj-class b67c16c477) +YJIT +PRISM [arm64-darwin24]...

object.c: improve fake_class_p to also handle T_MODULE

This requires ensuring T_MODULE never has FL_SINGLETON set,
so RMODULE_IS_REFINEMENT had to be moved.

Micro-optimize Object#class

Since BUILTIN_TYPE and RCLASS_SINGLETON_P are both stored in
RBasic.flags, we can combine these two checks in a single bitmask.

This rely on T_ICLASS and T_CLASS not overlapping, and assume
klass is always either of these types....

CI: Warn longstanding development revision of bundled gems

CI: bundled_gems.yml: Split commit and push