Add out-of-line constant pool support to Arm.

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 98b987b69a6eaea13cd7dfdc3b21c9d4fd78b872..d7a8718d92c224befdec6ae33a7bc5c26ce0e85b 100644
--- a/src/ia32/assembler-ia32.h
+++ b/src/ia32/assembler-ia32.h
@@ -1187,6 +1187,9 @@ class Assembler : public AssemblerBase {
   byte byte_at(int pos) { return buffer_[pos]; }
   void set_byte_at(int pos, byte value) { buffer_[pos] = value; }
 
+  // Generate the constant pool for the generated code.
+  void PopulateConstantPool(ConstantPoolArray* constant_pool);
+
  protected:
   void emit_sse_operand(XMMRegister reg, const Operand& adr);
   void emit_sse_operand(XMMRegister dst, XMMRegister src);