Handle functions call

Author: kylekatarnls

examples/function.js

@@ -0,0 +1,4 @@
+foo = [1, 2, 3];
+bar = 1;
+
+return implode(' - ', array_slice(foo, bar));

examples/function.return

@@ -0,0 +1 @@
+2 - 3

src/JsPhpize/Parser/Visitor.php

@@ -65,8 +65,10 @@ protected function visitVariable($token)
         }
         if ($next->type === '(') {
             $this->skip();
+            $call = $token->value . '(' . $this->getExpression() . ')';
+            $this->skip();
 
-            return $token->value . '(' . $this->getExpression() . ')';
+            return $call;
         }
         if ($next->isAssignation()) {
             $this->skip();