Ruby

The test TestM17N#test_str_dump located in test/ruby/test_m17n.rb (link at https://github.com/ruby/ruby/blob/83c961665def138e78a66d8bef0b4fa1da49ac69/test/ruby/test_m17n.rb#L324-L363), fails when run with frozen-string.

The test is similar to

def test_str_dump              # Note: several array elements removed to shorten
  [
    "\u3042".encode("UTF-16LE"),
    "\u3042".encode("UTF-16BE"),
  ].each do |str|
    assert_equal(str, eval(str.dump), "[ruby-dev:33142]")
  end
end

Since the following

"\u3042".encode("UTF-16LE").dump #-> "B0".force_encoding("UTF-16LE")
"\u3042".encode("UTF-16BE").dump #-> "0B".force_encoding("UTF-16BE")

When eval'd by the test, there is a failure due to the string being frozen. Not being a c type, not really sure what the solution is.

Possibly change line 5969 of string.c from

static const char nonascii_suffix[] = ".force_encoding(\"%s\")";

to

static const char nonascii_suffix[] = "dup.force_encoding(\"%s\")";

Thanks, Greg