13.3 Declarations and the Variable Statement

Shift/Reduce and Reduce/Reduce conflicts - problems implementing [13.3](http://www.ecma-international.org/ecma-262/6.0/#sec-declarations-and-the-variable-statement) of standard
Perhaps variabledeclaration and initialiser once implemented correctly (13.3.2 and 12.2.6 respectively) will remove conflict. Difficulty implementing standard......unsure
