Make trailing else on switch fix pass on to multiple when switches

lib/nodes.js

@@ -1248,7 +1248,7 @@
     // Rewrite a chain of IfNodes to add a default case as the final else.
     add_else: function add_else(exprs, statement) {
       if (this.is_chain()) {
-        this.else_body.add_else(exprs);
+        this.else_body.add_else(exprs, statement);
       } else {
         if (!(statement)) {
           exprs = exprs.unwrap();

src/nodes.coffee

@@ -987,7 +987,7 @@ IfNode: exports.IfNode: inherit Node, {
   # Rewrite a chain of IfNodes to add a default case as the final else.
   add_else: (exprs, statement) ->
     if @is_chain()
-      @else_body.add_else exprs
+      @else_body.add_else exprs, statement
     else
       exprs: exprs.unwrap() unless statement
       @children.push @else_body: exprs

test/test_switch.coffee

@@ -51,3 +51,14 @@ switch "word"
     result: true unless false
 
 ok result
+
+result: false
+switch "word"
+  when "one thing"
+    do_something()
+  when "other thing"
+    do_something()
+  else
+    result: true unless false
+
+ok result