splatted constructors returning `null` should produce the new instance

lib/coffee-script/nodes.js

@@ -813,7 +813,7 @@
       }
       if (this.isNew) {
         idt = this.tab + TAB;
-        return "(function(func, args, ctor) {\n" + idt + "ctor.prototype = func.prototype;\n" + idt + "var child = new ctor, result = func.apply(child, args);\n" + idt + "return typeof result === \"object\" ? result : child;\n" + this.tab + "})(" + (this.variable.compile(o, LEVEL_LIST)) + ", " + splatArgs + ", function() {})";
+        return "(function(func, args, ctor) {\n" + idt + "ctor.prototype = func.prototype;\n" + idt + "var child = new ctor, result = func.apply(child, args);\n" + idt + "return typeof result === \"object\" && result !== null ? result : child;\n" + this.tab + "})(" + (this.variable.compile(o, LEVEL_LIST)) + ", " + splatArgs + ", function() {})";
       }
       base = new Value(this.variable);
       if ((name = base.properties.pop()) && base.isComplex()) {

src/nodes.coffee

@@ -587,7 +587,7 @@ exports.Call = class Call extends Base
         (function(func, args, ctor) {
         #{idt}ctor.prototype = func.prototype;
         #{idt}var child = new ctor, result = func.apply(child, args);
-        #{idt}return typeof result === "object" ? result : child;
+        #{idt}return typeof result === "object" && result !== null ? result : child;
         #{@tab}})(#{ @variable.compile o, LEVEL_LIST }, #{splatArgs}, function() {})
       """
     base = new Value @variable

test/function_invocation.coffee

@@ -392,6 +392,12 @@ test "#1011: passing a splat to a method of a number", ->
   eq '1011', (131.0).toString [5]...
 
 
+test "splats and the `new` operator: functions that return `null` should produce their instance", ->
+  args = []
+  child = new (constructor = -> null) args...
+  ok child instanceof constructor
+
+
 test "implicit return", ->
 
   eq ok, new ->