Subzero: Support multiple fixups in one instruction.

src/assembler_ia32.h

Index: src/assembler_ia32.h
diff --git a/src/assembler_ia32.h b/src/assembler_ia32.h
index b1079d1af80294593aee5f3b4646aa487a928e56..f393f715df4f264c7998230f875040dee24dd02b 100644
--- a/src/assembler_ia32.h
+++ b/src/assembler_ia32.h
@@ -830,7 +830,9 @@ public:
   template <typename T> T LoadBuffer(intptr_t position) const {
     return buffer_.Load<T>(position);
   }
-  AssemblerFixup *GetLatestFixup() const { return buffer_.GetLatestFixup(); }
+  AssemblerFixup *GetLatestFixup(intptr_t position) const {
+    return buffer_.GetLatestFixup(position);
+  }
 
 private:
   inline void EmitUint8(uint8_t value);