Update YAML frontmatter of some tests to be compatible with monkeyYaml (#862)

...RegExp/prototype/Symbol.split/str-adv-thru-empty-match.js

...gExp/prototype/Symbol.split/u-lastindex-adv-thru-match.js

test/intl402/PluralRules/prototype/select/non-finite.js

test/intl402/PluralRules/prototype/select/tainting.js

test/language/module-code/instn-named-bndng-dflt-expr.js

test/language/module-code/instn-star-ambiguous.js

test/language/module-code/instn-star-props-circular.js

...nguage/module-code/instn-star-props-dflt-keep-indirect.js

.../language/module-code/instn-star-props-dflt-keep-local.js

test/language/module-code/instn-star-props-dflt-skip.js

test/language/statements/for-of/array-contract.js

test/language/statements/if/cptn-else-false-abrupt-empty.js

test/language/statements/with/labelled-fn-stmt.js