Experimental: fix a bug where we could have returns from a function...

src/codegen-ia32.h

Index: src/codegen-ia32.h
===================================================================
--- src/codegen-ia32.h	(revision 1041)
+++ src/codegen-ia32.h	(working copy)
@@ -264,6 +264,12 @@
   // Main code generation function
   void GenCode(FunctionLiteral* fun);
 
+  // Generate the return sequence code.  Should be called no more than once
+  // per compiled function (it binds the return target, which can not be
+  // done more than once).  The return value is assumed to be in eax by the
+  // code generated.
+  void GenerateReturnSequence();
+
   // The following are used by class Reference.
   void LoadReference(Reference* ref);
   void UnloadReference(Reference* ref);