Make Coverage suspendable (#4856)

* Make Coverage suspendable

Add `Coverage.suspend`, `Coverage.resume` and some methods.

[Feature #18176] [ruby-core:105321]

1 files changed, 3 insertions, 1 deletions

diff --git a/vm_core.h b/vm_core.h
index 76d0025613..a696a1af39 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -667,7 +667,7 @@ typedef struct rb_vm_struct {
     rb_nativethread_lock_t workqueue_lock;
 
     VALUE orig_progname, progname;
-    VALUE coverages;
+    VALUE coverages, me2counter;
     int coverage_mode;
 
     st_table * defined_module_hash;
@@ -2060,6 +2060,8 @@ extern VALUE rb_get_coverages(void);
 extern void rb_set_coverages(VALUE, int, VALUE);
 extern void rb_clear_coverages(void);
 extern void rb_reset_coverages(void);
+extern void rb_resume_coverages(void);
+extern void rb_suspend_coverages(void);
 
 void rb_postponed_job_flush(rb_vm_t *vm);