Merge pull request #377 from bocoup/symbol-iterator

test/built-ins/Array/from/get-iter-method-err.js

test/built-ins/Array/from/iter-adv-err.js

test/built-ins/Array/from/iter-cstm-ctor-err.js

test/built-ins/Array/from/iter-cstm-ctor.js

test/built-ins/Array/from/iter-get-iter-err.js

test/built-ins/Array/from/iter-get-iter-val-err.js

test/built-ins/Array/from/iter-map-fn-args.js

test/built-ins/Array/from/iter-map-fn-err.js

test/built-ins/Array/from/iter-map-fn-return.js

test/built-ins/Array/from/iter-map-fn-this-arg.js

test/built-ins/Array/from/iter-map-fn-this-non-strict.js

test/built-ins/Array/from/iter-map-fn-this-strict.js

test/built-ins/Array/from/iter-set-elem-prop-err.js

test/built-ins/Array/from/iter-set-elem-prop.js

test/built-ins/Array/from/iter-set-length-err.js

test/built-ins/Array/from/iter-set-length.js

test/built-ins/Array/prototype/values/length.js

test/built-ins/Array/prototype/values/name.js

test/built-ins/Array/prototype/values/prop-desc.js

...-ins/Array/prototype/values/this-val-non-obj-coercible.js