Environment

• jruby 9.1.9.0 (2.3.3) 2017-05-15 28aa830 Java HotSpot(TM) 64-Bit Server VM 25.5-b02 on 1.8.0_05-b13 +jit [darwin-x86_64]
• Darwin Kernel Version 13.0.2: Sun Sep 29 19:38:57 PDT 2013; root:xnu-2422.75.4~1/RELEASE_X86_64 x86_64

Expected Behavior

This is behavior of JRuby 9.1.8.0 and MRI 2.4.1 and MRI 2.5.0dev (2017-05-16 trunk 58738) .

> %i(foo bar baz).each_with_index {|v| puts v.inspect }
:foo
:bar
:baz

Actual Behavior

This is behavior of JRuby 9.1.9.0.

> %i(foo bar baz).each_with_index {|v| puts v.inspect }
[:foo, 0]
[:bar, 1]
[:baz, 2]

JRuby 9.1.9.0 returns array object. Is this intentionally changed?