Merge pull request #282 from bocoup/Proxy

...ns/Proxy/getOwnPropertyDescriptor/trap-is-not-callable.js

...t-ins/Proxy/getOwnPropertyDescriptor/trap-is-undefined.js

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

...y/getPrototypeOf/extensible-target-return-handlerproto.js

...xy/getPrototypeOf/not-extensible-not-same-proto-throws.js

...ilt-ins/Proxy/getPrototypeOf/not-extensible-same-proto.js

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

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

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

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

...eOf/trap-result-neither-object-nor-null-throws-boolean.js

...peOf/trap-result-neither-object-nor-null-throws-number.js

...peOf/trap-result-neither-object-nor-null-throws-string.js

...peOf/trap-result-neither-object-nor-null-throws-symbol.js

...f/trap-result-neither-object-nor-null-throws-undefined.js

test/built-ins/Proxy/has/call-in.js

test/built-ins/Proxy/has/call-object-create.js

test/built-ins/Proxy/has/call-with.js

test/built-ins/Proxy/has/null-handler-using-with.js

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