RJIT: Rename pause/resume to disable/enable

like YJIT. They don't work in the same way yet, but it's nice to make
the naming consistent first so that we will not need to rename them
later.

rjit.c

@@ -139,9 +139,8 @@ rb_rjit_setup_options(const char *s, struct rb_rjit_options *rjit_opt)
     else if (opt_match_noarg(s, l, "verify-ctx")) {
         rjit_opt->verify_ctx = true;
     }
-    // --rjit=pause is an undocumented feature for experiments
-    else if (opt_match_noarg(s, l, "pause")) {
-        rjit_opt->pause = true;
+    else if (opt_match_noarg(s, l, "disable")) {
+        rjit_opt->disable = true;
     }
     else {
         rb_raise(rb_eRuntimeError,
@@ -437,7 +436,7 @@ rb_rjit_init(const struct rb_rjit_options *opts)
     }
 
     // Enable RJIT and stats from here
-    rb_rjit_call_p = !rb_rjit_opts.pause;
+    rb_rjit_call_p = !rb_rjit_opts.disable;
     rjit_stats_p = rb_rjit_opts.stats;
 }
 

rjit.h

@@ -35,7 +35,7 @@ struct rb_rjit_options {
     // Verify context objects
     bool verify_ctx;
     // [experimental] Do not start RJIT until RJIT.resume is called.
-    bool pause;
+    bool disable;
 };
 
 RUBY_SYMBOL_EXPORT_BEGIN

rjit.rb

@@ -4,8 +4,8 @@ module RubyVM::RJIT
     Primitive.cexpr! 'RBOOL(rb_rjit_enabled)'
   end
 
-  # Start generating JITed code again after --rjit-pause.
-  def self.resume
+  # Start generating JITed code again after --rjit-disable.
+  def self.enable
     Primitive.cstmt! %{
       rb_rjit_call_p = true;
       return Qnil;

rjit_c.rb

@@ -1332,7 +1332,7 @@ module RubyVM::RJIT # :nodoc: all
       trace_exits: [self._Bool, Primitive.cexpr!("OFFSETOF((*((struct rb_rjit_options *)NULL)), trace_exits)")],
       dump_disasm: [self._Bool, Primitive.cexpr!("OFFSETOF((*((struct rb_rjit_options *)NULL)), dump_disasm)")],
       verify_ctx: [self._Bool, Primitive.cexpr!("OFFSETOF((*((struct rb_rjit_options *)NULL)), verify_ctx)")],
-      pause: [self._Bool, Primitive.cexpr!("OFFSETOF((*((struct rb_rjit_options *)NULL)), pause)")],
+      disable: [self._Bool, Primitive.cexpr!("OFFSETOF((*((struct rb_rjit_options *)NULL)), disable)")],
     )
   end