Merge pull request #1349 from caiolima/big-int-constructor-obj

.../built-ins/BigInt/call-value-of-when-to-string-present.js

test/built-ins/BigInt/constructor-empty-string.js

test/built-ins/BigInt/constructor-from-binary-string.js

test/built-ins/BigInt/constructor-from-decimal-string.js

test/built-ins/BigInt/constructor-from-hex-string.js

test/built-ins/BigInt/constructor-from-octal-string.js

...built-ins/BigInt/constructor-from-string-syntax-errors.js

test/built-ins/BigInt/constructor-trailing-leading-spaces.js

test/built-ins/BigInt/value-of-throws.js