merge revision(s) cf7d07570f50ef9c16007019afcff11ba6500d70: [Backport #18938]

	Dump non-ASCII char as unsigned

	Non-ASCII code may be negative on platforms plain char is signed.
	---
	 ext/objspace/objspace_dump.c   |  2 +-
	 test/objspace/test_objspace.rb | 15 +++++++++++++++
	 2 files changed, 16 insertions(+), 1 deletion(-)

1 files changed, 15 insertions, 0 deletions

diff --git a/test/objspace/test_objspace.rb b/test/objspace/test_objspace.rb
index a1954d56a9..bdc9c8c3d7 100644
--- a/test/objspace/test_objspace.rb
+++ b/test/objspace/test_objspace.rb
@@ -632,4 +632,19 @@ class TestObjSpace < Test::Unit::TestCase
       assert_equal '42', out[2]
     end
   end
+
+  def test_utf8_method_names
+    name = "utf8_❨╯°□°❩╯︵┻━┻"
+    obj = ObjectSpace.trace_object_allocations do
+      __send__(name)
+    end
+    dump = ObjectSpace.dump(obj)
+    assert_equal name, JSON.parse(dump)["method"], dump
+  end
+
+  private
+
+  def utf8_❨╯°□°❩╯︵┻━┻
+    "1#{2}"
+  end
 end