functions.ts bindingInferrer affects statements before assignment

[BBLN]

The following short code throws exception, because bindingInferrer sets v value to null, even though the member-expression should see v as param.

(function ()
{
	return function (v) {
		return function () {
			v['myParam']();
			v = null;
		};
	}
})();

Stack-trace:

TypeError: ex3.js: Cannot read property 'myParam' of null
    at getMemberExpressionValue (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-plugin-deobfuscate\lib\member-expressions.js:82:26)
    at evaluate (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-plugin-deobfuscate\lib\member-expressions.js:68:10)
    at evaluateExpression (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-plugin-deobfuscate\lib\expressions.js:36:12)
    at PluginPass.deobfuscateExpression (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-plugin-deobfuscate\lib\expressions.js:23:18)
    at PluginPass.newFn (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-cli\node_modules\babel-traverse\lib\visitors.js:318:17)
    at newFn (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-cli\node_modules\babel-traverse\lib\visitors.js:276:21)
    at NodePath._call (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-cli\node_modules\babel-traverse\lib\path\context.js:76:18)
    at NodePath.call (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-cli\node_modules\babel-traverse\lib\path\context.js:48:17)
    at NodePath.visit (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-cli\node_modules\babel-traverse\lib\path\context.js:105:12)
    at TraversalContext.visitQueue (C:\Users\Administrator1\AppData\Roaming\npm\node_modules\babel-cli\node_modules\babel-traverse\lib\context.js:150:16)