Replace runTestCase with assert.throws [test/language/]

test/language/literals/string/7.8.4-16-s.js

test/language/literals/string/7.8.4-17-s.js

test/language/literals/string/7.8.4-18-s.js

test/language/literals/string/7.8.4-19-s.js

test/language/literals/string/7.8.4-2-s.js

test/language/literals/string/7.8.4-20-s.js

test/language/literals/string/7.8.4-21-s.js

test/language/literals/string/7.8.4-22-s.js

test/language/literals/string/7.8.4-23-s.js

test/language/literals/string/7.8.4-24-s.js

test/language/literals/string/7.8.4-25-s.js

test/language/literals/string/7.8.4-26-s.js

test/language/literals/string/7.8.4-27-s.js

test/language/literals/string/7.8.4-28-s.js

test/language/literals/string/7.8.4-29-s.js

test/language/literals/string/7.8.4-3-s.js

test/language/literals/string/7.8.4-30-s.js

test/language/literals/string/7.8.4-31-s.js

test/language/literals/string/7.8.4-32-s.js

test/language/literals/string/7.8.4-33-s.js