check `cc->*` liveness strictly

to fix SEGV like
http://ci.rvm.jp/results/trunk-repeat20-asserts@ruby-sp2-docker/4664004
```
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(sigsegv+0x4f) [0x7fcb0343e7df] /tmp/ruby/src/trunk-repeat20-asserts/signal.c:920
/lib/x86_64-linux-gnu/libc.so.6(0x7fcb02e4d520) [0x7fcb02e4d520]
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(RB_SPECIAL_CONST_P+0x13) [0x7fcb03311ea3] /tmp/ruby/src/trunk-repeat20-asserts/include/ruby/internal/special_consts.h:329
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(RB_BUILTIN_TYPE) /tmp/ruby/src/trunk-repeat20-asserts/include/ruby/internal/value_type.h:183
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_object_moved_p) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:1624
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_object_moved_p+0xe) [0x7fcb0331ed16] /tmp/ruby/src/trunk-repeat20-asserts/include/ruby/internal/special_consts.h:329
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_ref_update_imemo) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:10132
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_update_object_references) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:10411
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_ref_update+0xab) [0x7fcb0331fcbb] /tmp/ruby/src/trunk-repeat20-asserts/gc.c:10570
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_update_references) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:10604
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_compact_finish) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:5425
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_sweep_compact) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:8476
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_sweep) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:6040
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_start+0xe25) [0x7fcb03325795] /tmp/ruby/src/trunk-repeat20-asserts/gc.c:9323
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(rb_multi_ractor_p+0x0) [0x7fcb03326108] /tmp/ruby/src/trunk-repeat20-asserts/gc.c:9208
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(rb_vm_lock_leave) /tmp/ruby/src/trunk-repeat20-asserts/vm_sync.h:92
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(garbage_collect) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:9210
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(rbimpl_atomic_exchange+0x0) [0x7fcb033262b9] /tmp/ruby/src/trunk-repeat20-asserts/gc.c:9646
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_finalize_deferred) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:4345
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_start_internal) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:9647
/tmp/ruby/build/trunk-repeat20-asserts/libruby.so.3.3(gc_compact) /tmp/ruby/src/trunk-repeat20-asserts/gc.c:10748
```

1 files changed, 10 insertions, 4 deletions

diff --git a/gc.c b/gc.c
index d60e564216..54582bd81a 100644
--- a/gc.c
+++ b/gc.c
@@ -10081,6 +10081,14 @@ gc_update_values(rb_objspace_t *objspace, long n, VALUE *values)
     }
 }
 
+static bool
+moved_or_living_object_strictly_p(rb_objspace_t *objspace, VALUE obj)
+{
+    return obj &&
+           is_pointer_to_heap(objspace, (void *)obj) &&
+           (is_live_object(objspace, obj) || BUILTIN_TYPE(obj) == T_MOVED);
+}
+
 static void
 gc_ref_update_imemo(rb_objspace_t *objspace, VALUE obj)
 {
@@ -10133,10 +10141,8 @@ gc_ref_update_imemo(rb_objspace_t *objspace, VALUE obj)
                 // already invalidated
             }
             else {
-                if ( // cc->klass is living
-                     (BUILTIN_TYPE(cc->klass) == T_MOVED || is_live_object(objspace, cc->klass)) &&
-                     // cc->cme_ is living
-                     (cc->cme_ && ((BUILTIN_TYPE((VALUE)cc->cme_) == T_MOVED) || is_live_object(objspace, (VALUE)cc->cme_)))) {
+                if (moved_or_living_object_strictly_p(objspace, cc->klass) &&
+                    moved_or_living_object_strictly_p(objspace, (VALUE)cc->cme_)) {
                     UPDATE_IF_MOVED(objspace, cc->klass);
                     TYPED_UPDATE_IF_MOVED(objspace, struct rb_callable_method_entry_struct *, cc->cme_);
                 }