Subzero: Fix symbol name mangling. Make flags global.

src/IceFixups.h

 //===- subzero/src/IceFixups.h - Assembler fixup kinds ----------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 27 matching lines @@
   }
   void set_position(intptr_t Position) {
     position_ = Position;
     position_was_set_ = true;
   }
 
   FixupKind kind() const { return kind_; }
   void set_kind(FixupKind Kind) { kind_ = Kind; }
 
   RelocOffsetT offset() const;
-  IceString symbol(const GlobalContext *Ctx, const Assembler *Asm) const;
+  IceString symbol(const Assembler *Asm) const;
 
   static const Constant *NullSymbol;
   bool isNullSymbol() const { return value_ == NullSymbol; }
 
   static constexpr AssemblerFixup *NoFixup = nullptr;
 
   void set_value(const Constant *Value) { value_ = Value; }
 
   void set_addend(RelocOffsetT Addend) { addend_ = Addend; }
   RelocOffsetT get_addend() const { return addend_; }
@@ skipping 33 matching lines @@
   const std::string Message;
   const size_t NumBytes;
 };
 
 using FixupList = std::vector<AssemblerFixup>;
 using FixupRefList = std::vector<AssemblerFixup *>;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEFIXUPS_H