array.c: class name encoding

* array.c (rb_ary_bsearch): preserve encoding of class name in an
  exception message.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49215 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

array.c

@@ -2615,15 +2615,15 @@ rb_ary_bsearch(VALUE ary)
 	else if (rb_obj_is_kind_of(v, rb_cNumeric)) {
 	    const VALUE zero = INT2FIX(0);
 	    switch (rb_cmpint(rb_funcallv(v, id_cmp, 1, &zero), v, INT2FIX(0))) {
-		case 0: return val;
-		case 1: smaller = 1; break;
-		case -1: smaller = 0;
+	      case 0: return val;
+	      case 1: smaller = 1; break;
+	      case -1: smaller = 0;
 	    }
 	}
 	else {
-	    rb_raise(rb_eTypeError, "wrong argument type %s"
-		" (must be numeric, true, false or nil)",
-		rb_obj_classname(v));
+	    rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE
+		     " (must be numeric, true, false or nil)",
+		     rb_obj_class(v));
 	}
 	if (smaller) {
 	    high = mid;

test/ruby/test_array.rb

@@ -2458,6 +2458,10 @@ class TestArray < Test::Unit::TestCase
     assert_raise(TypeError) do
       [1, 2, 42, 100, 666].bsearch{ "not ok" }
     end
+    c = eval("class C\u{309a 26a1 26c4 1f300};self;end")
+    assert_raise_with_message(TypeError, /C\u{309a 26a1 26c4 1f300}/) do
+      [0,1].bsearch {c.new}
+    end
     assert_equal [1, 2, 42, 100, 666].bsearch{}, [1, 2, 42, 100, 666].bsearch{false}
   end