nested shared scopes don't clobber variables.

lib/command.js

@@ -49,9 +49,8 @@
     return compileScripts();
   };
   compileScripts = function() {
-    var _fn, _i, _len, _results;
+    var base, compile, _fn, _i, _len, _results;
     _fn = function(source) {
-      var base, compile;
       base = path.join(source);
       compile = function(source, topLevel) {
         return path.exists(source, function(exists) {

lib/nodes.js

@@ -1880,6 +1880,7 @@
           args.unshift(new Literal('this'));
         }
         body.expressions[idx] = new Call(base, args);
+        o.sharedScope = o.scope;
         defs += this.tab + new Assign(ref, fn).compile(o, LEVEL_TOP) + ';\n';
       }
       return defs;

src/nodes.coffee

@@ -1498,6 +1498,7 @@ exports.For = class For extends Base
         [val.base, base] = [base, val]
         args.unshift new Literal 'this'
       body.expressions[idx] = new Call base, args
+      o.sharedScope = o.scope
       defs += @tab + new Assign(ref, fn).compile(o, LEVEL_TOP) + ';\n'
     defs
 

test/test_comprehensions.coffee

@@ -219,3 +219,12 @@ odds = while i--
   i
 
 ok odds.join(', ') is '5, 3, 1'
+
+
+# Nested shared scopes.
+foo = ->
+  for i in [0..7]
+    for j in [0..7]
+      -> i + j
+
+eq foo()[3][4](), 7