Cache optimized code on shared function info.

src/ia32/codegen-ia32.h

Index: src/ia32/codegen-ia32.h
diff --git a/src/ia32/codegen-ia32.h b/src/ia32/codegen-ia32.h
index acd651b4abf52629501397923f378dbf14313aa0..010c05eea03e26ad0064516cfa8ba04876526f22 100644
--- a/src/ia32/codegen-ia32.h
+++ b/src/ia32/codegen-ia32.h
@@ -343,15 +343,6 @@ class CodeGenerator: public AstVisitor {
   bool in_spilled_code() const { return in_spilled_code_; }
   void set_in_spilled_code(bool flag) { in_spilled_code_ = flag; }
 
-  // Return a position of the element at |index_as_smi| + |additional_offset|
-  // in FixedArray pointer to which is held in |array|.  |index_as_smi| is Smi.
-  static Operand FixedArrayElementOperand(Register array,
-                                          Register index_as_smi,
-                                          int additional_offset = 0) {
-    int offset = FixedArray::kHeaderSize + additional_offset * kPointerSize;
-    return FieldOperand(array, index_as_smi, times_half_pointer_size, offset);
-  }
-
  private:
   // Type of a member function that generates inline code for a native function.
   typedef void (CodeGenerator::*InlineFunctionGenerator)