RFC: Switch to ast ids (instead of positions) for type feedback.

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
diff --git a/src/ia32/assembler-ia32.h b/src/ia32/assembler-ia32.h
index 2b4624c6f7bfe3eb825876c6c62374d2e10acb32..cea476c4e48d2423760a77683cbc5f4e44fbbcc0 100644
--- a/src/ia32/assembler-ia32.h
+++ b/src/ia32/assembler-ia32.h
@@ -783,7 +783,7 @@ class Assembler : public Malloced {
   void call(Label* L);
   void call(byte* entry, RelocInfo::Mode rmode);
   void call(const Operand& adr);
-  void call(Handle<Code> code, RelocInfo::Mode rmode);
+  void call(Handle<Code> code, RelocInfo::Mode rmode, AstId id = kNoAstId);
 
   // Jumps
   void jmp(Label* L);  // unconditional jump to L
@@ -984,7 +984,7 @@ class Assembler : public Malloced {
   void GrowBuffer();
   inline void emit(uint32_t x);
   inline void emit(Handle<Object> handle);
-  inline void emit(uint32_t x, RelocInfo::Mode rmode);
+  inline void emit(uint32_t x, RelocInfo::Mode rmode, AstId id = kNoAstId);
   inline void emit(const Immediate& x);
   inline void emit_w(const Immediate& x);