This is a testharness.js-based test.
PASS Invalid surrogates encoded into UTF-8: Sanity check 
PASS Invalid surrogates encoded into UTF-8: Surrogate half (low) 
PASS Invalid surrogates encoded into UTF-8: Surrogate half (high) 
PASS Invalid surrogates encoded into UTF-8: Surrogate half (low), in a string 
PASS Invalid surrogates encoded into UTF-8: Surrogate half (high), in a string 
PASS Invalid surrogates encoded into UTF-8: Wrong order 
Harness: the test ran to completion.