Fixing class extends this in a non-class context.

lib/nodes.js

@@ -1049,7 +1049,7 @@
       this.ensureConstructor(name);
       this.body.expressions.push(lname);
       this.addBoundFunctions(o);
-      klass = new Parens(new Call(new Code([], this.body)), true);
+      klass = new Parens(Closure.wrap(this.body), true);
       if (this.variable) {
         klass = new Assign(this.variable, klass);
       }

src/nodes.coffee

@@ -841,7 +841,7 @@ exports.Class = class Class extends Base
     @body.expressions.push lname
     @addBoundFunctions o
 
-    klass = new Parens new Call(new Code [], @body), true
+    klass = new Parens Closure.wrap(@body), true
     klass = new Assign @variable, klass if @variable
     klass.compile o
 

test/test_classes.coffee

@@ -354,3 +354,17 @@ class A
     @c = -> 5
 
 eq A.B.c(), 5
+
+
+# `class extends this` ...
+class A
+  func: -> 'A'
+
+B = null
+makeClass = ->
+  B = class extends this
+    func: -> super + ' B'
+
+makeClass.call A
+
+eq (new B()).func(), 'A B'