Merge pull request #282 from bocoup/Proxy

test/built-ins/Proxy/set/call-parameters.js

test/built-ins/Proxy/set/null-handler.js

test/built-ins/Proxy/set/return-is-abrupt.js

...get-property-accessor-is-configurable-set-is-undefined.js

...turn-true-target-property-accessor-is-not-configurable.js

...xy/set/return-true-target-property-is-not-configurable.js

.../Proxy/set/return-true-target-property-is-not-writable.js

...property-is-accessor-not-configurable-set-is-undefined.js

...operty-is-not-configurable-not-writable-not-equal-to-v.js

test/built-ins/Proxy/set/trap-is-not-callable.js

test/built-ins/Proxy/set/trap-is-undefined-no-property.js

test/built-ins/Proxy/set/trap-is-undefined.js

...y/setPrototypeOf/boolean-trap-result-extensible-target.js

test/built-ins/Proxy/setPrototypeOf/call-parameters.js

...typeOf/not-extensible-target-not-same-target-prototype.js

...rototypeOf/not-extensible-target-same-target-prototype.js

...tPrototypeOf/not-extensible-trap-is-false-return-false.js

test/built-ins/Proxy/setPrototypeOf/null-handler.js

test/built-ins/Proxy/setPrototypeOf/return-is-abrupt.js

test/built-ins/Proxy/setPrototypeOf/trap-is-not-callable.js