Simplify the way that we compile slow-case switch statements. Compile

all the reachable tests first, and then all the reachable bodies.
Review URL: http://codereview.chromium.org/28296

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1397 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ast.h

@@ -447,10 +447,12 @@ class CaseClause: public ZoneObject {
     CHECK(!is_default());
     return label_;
   }
+  JumpTarget* body_target() { return &body_target_; }
   ZoneList<Statement*>* statements() const  { return statements_; }
 
  private:
   Expression* label_;
+  JumpTarget body_target_;
   ZoneList<Statement*>* statements_;
 };