allowing implicit returns to be pushed down into each branch of computation, even when there's an explicit return nested more deeply. Issue #401

test/test_returns.coffee

@@ -10,4 +10,15 @@ third: ->
 
 ok first().join(' ')     is 'do do do'
 ok second()[0].join(' ') is 're re re'
-ok third().join(' ')     is 'mi mi mi'
+ok third().join(' ')     is 'mi mi mi'
+
+
+# Testing returns with multiple branches.
+func: ->
+  if false
+    for a in b
+      return c if d
+  else
+    "word"
+
+ok func() is 'word'