Change the way we generate versions

ppapi/generators/test_cgen/interface.idl

Index: ppapi/generators/test_cgen/interface.idl
===================================================================
--- ppapi/generators/test_cgen/interface.idl	(revision 163185)
+++ ppapi/generators/test_cgen/interface.idl	(working copy)
@@ -8,6 +8,10 @@
  * This file will test that the IDL snippet matches the comment.
  */
 
+label Chrome {
+  M14 = 1.0,
+  M15 = 2.0
+};
 /* struct ist { void* X; }; */
 struct ist {
   mem_t X;
@@ -23,12 +27,21 @@
  * int32_t (*mem6)(void** ptr);
  * };
  */
-interface iface1 {
+interface ifaceFoo {
   int8_t mem1([in] int16_t x, [in] int32_t y);
   int32_t mem2([in] ist a);
   int32_t mem3([out] ist b);
   int32_t mem4([in] blob_t ptr);
   int32_t mem5([out] blob_t ptr);
-  int32_t mem6([inout] blob_t ptr);
+  [version=2.0] int32_t mem6([inout] blob_t ptr);
 };
 
+interface ifaceBar {
+  int8_t testIface([in] ifaceFoo foo, [in] int32_t y);
+  ifaceFoo createIface([in] str_t name);
+};
+
+struct struct2 {
+  ifaceBar bar;
+};
+