Sync header files

Author: peterzhu2118

gc/gc.h

@@ -48,7 +48,6 @@ enum rb_gc_vm_weak_tables {
     RB_GC_VM_CI_TABLE,
     RB_GC_VM_OVERLOADED_CME_TABLE,
     RB_GC_VM_GLOBAL_SYMBOLS_TABLE,
-    RB_GC_VM_ID2REF_TABLE,
     RB_GC_VM_GENERIC_FIELDS_TABLE,
     RB_GC_VM_FROZEN_STRINGS_TABLE,
     RB_GC_VM_WEAK_TABLE_COUNT
@@ -93,6 +92,7 @@ MODULAR_GC_FN void rb_gc_vm_unlock_no_barrier(unsigned int lev, const char *file
 MODULAR_GC_FN void rb_gc_vm_barrier(void);
 MODULAR_GC_FN size_t rb_gc_obj_optimal_size(VALUE obj);
 MODULAR_GC_FN void rb_gc_mark_children(void *objspace, VALUE obj);
+MODULAR_GC_FN bool rb_gc_vm_weak_table_essential_p(enum rb_gc_vm_weak_tables table);
 MODULAR_GC_FN void rb_gc_vm_weak_table_foreach(vm_table_foreach_callback_func callback, vm_table_update_callback_func update_callback, void *data, bool weak_only, enum rb_gc_vm_weak_tables table);
 MODULAR_GC_FN void rb_gc_update_object_references(void *objspace, VALUE obj);
 MODULAR_GC_FN void rb_gc_update_vm_references(void *objspace);

gc/gc_impl.h

@@ -13,14 +13,6 @@
 #include <stddef.h>
 #include <stdint.h>
 
-struct gc_bump_pointer_heap {
-    uintptr_t cursor;
-    uintptr_t cursor_end;
-    uintptr_t jit_cursor_end;
-    uintptr_t region_start;
-    size_t    slot_size;
-};
-
 enum rb_gc_zjit_fastpath_kind {
     RB_GC_ZJIT_FASTPATH_DEFAULT = 1,
     RB_GC_ZJIT_FASTPATH_MMTK = 2,