[Bug #18264] Fix memory leak in TracePoint

	TracePoint leaks memory because it allocates a `rb_tp_t` struct
	without ever freeing it (it is created with `RUBY_TYPED_NEVER_FREE`).
	---
	 test/ruby/test_settracefunc.rb | 10 ++++++++++
	 vm_trace.c                     |  2 +-
	 2 files changed, 11 insertions(+), 1 deletion(-)