Compile ES2015 destructuring to ES5
Rename destructuring parameter to workaround https://bugs.webkit.org/show_bug.cgi?id=220517
Compile ES2015 destructuring to ES5
get a list of identifiers that are initialised by a JavaScript AST node.
Inspects function's parameters declaration and returns information about it (e.g. names, default values, if needs destructuring, destructured parameters names and default values)