message: fixing warnings about unused variables
diff: @@ -206,21 +206,21 @@ BOOST_FIXTURE_TEST_CASE(test_symbol, tester) try {
  // from empty string
  {
  - BOOST_CHECK_EXCEPTION(symbol empty = symbol::from_string(""),
  + BOOST_CHECK_EXCEPTION(symbol::from_string(""),
  fc::assert_exception, assert_message_is("creating symbol from empty string"));
  }
  // precision part missing
  {
  - BOOST_CHECK_EXCEPTION(symbol incomplete = symbol::from_string("RND"),
  + BOOST_CHECK_EXCEPTION(symbol::from_string("RND"),
  fc::assert_exception, assert_message_is("missing comma in symbol"));
  }
  // precision part missing
  {
  - BOOST_CHECK_EXCEPTION(symbol incomplete = symbol::from_string("0,EURO"),
  + BOOST_CHECK_EXCEPTION(symbol::from_string("0,EURO"),
  fc::assert_exception, assert_message_is("zero decimals in symbol"));
  }
  @@ -240,7 +240,7 @@ BOOST_FIXTURE_TEST_CASE(test_symbol, tester) try {
  // invalid - missing decimal point
  {
  - BOOST_CHECK_EXCEPTION(asset a = asset::from_string("10 CUR"),
  + BOOST_CHECK_EXCEPTION(asset::from_string("10 CUR"),
  fc::assert_exception, assert_message_is("dot missing in asset from string"));
  }
  