Not Initializing Declaration Bindings in Correct order

[mattbierner]

10.5 specifies how the bindings should be initialized for code (This is completely absurd by the way).

Currently, the fn decls and var decls are inited together but this should be split with the arguments binding init in the middle.

[mattbierner]

Example:

function f(x) { function x(){ return 10; } return x; }
f(1)()

Should return 10 but throws because f(1) returns 1 and not the inner fn.

This works fine:

function f(x) { var x = function() { return 10; }; return x; }
f(1)()