Improve test of mruby-symbol-ext GEM

mrbgems/mruby-symbol-ext/test/symbol.rb

@@ -2,11 +2,11 @@
 # Symbol(Ext) Test
 
 assert('Symbol#to_proc') do
-  assert_equal :abs.to_proc[-5], 5
+  assert_equal 5, :abs.to_proc[-5]
 end
 
 assert('Symbol.all_symbols') do
   foo = [:__symbol_test_1, :__symbol_test_2, :__symbol_test_3].sort
   symbols = Symbol.all_symbols.select{|sym|sym.to_s.include? '__symbol_test'}.sort
-  assert_equal symbols, foo
+  assert_equal foo, symbols
 end