revert r59815 partially.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@59816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

gc.c

@@ -2734,14 +2734,12 @@ run_finalizer(rb_objspace_t *objspace, VALUE obj, VALUE table)
     } saved;
     rb_thread_t *const th = GET_THREAD();
 #define RESTORE_FINALIZER() (\
-	th->cfp = saved.cfp, \
 	rb_set_safe_level_force(saved.safe), \
 	rb_set_errinfo(saved.errinfo))
 
     saved.safe = rb_safe_level();
     saved.errinfo = rb_errinfo();
     saved.objid = nonspecial_obj_id(obj);
-    saved.cfp = th->cfp;
     saved.finished = 0;
 
     TH_PUSH_TAG(th);

test/ruby/test_gc.rb

@@ -397,27 +397,4 @@ class TestGc < Test::Unit::TestCase
       ObjectSpace.each_object{|o| case o when Module then o.instance_methods end}
     end
   end
-
-  def test_exception_in_finalizer_method
-    @result = []
-    def self.c1(x)
-      @result << :c1
-      raise
-    end
-    def self.c2(x)
-      @result << :c2
-      raise
-    end
-    tap {
-      tap {
-        obj = Object.new
-        ObjectSpace.define_finalizer(obj, method(:c1))
-        ObjectSpace.define_finalizer(obj, method(:c2))
-        obj = nil
-      }
-    }
-    GC.start
-    skip "finalizers did not get run" if @result.empty?
-    assert_equal([:c1, :c2], @result)
-  end
 end