Subzero: Add -Wshadow to the build.

src/IceELFSection.h

 //===- subzero/src/IceELFSection.h - Model of ELF sections ------*- 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 @@
 
   /// Sentinel value for a section number/index for before the final
   /// section index is actually known. The dummy NULL section will be assigned
   /// number 0, and it is referenced by the dummy 0-th symbol in the symbol
   /// table, so use max() instead of 0.
   enum { NoSectionNumber = std::numeric_limits<SizeT>::max() };
 
   /// Constructs an ELF section, filling in fields that will be known
   /// once the *type* of section is decided.  Other fields may be updated
   /// incrementally or only after the program is completely defined.
-  ELFSection(const IceString &Name, Elf64_Word ShType, Elf64_Xword ShFlags,
+  ELFSection(const IceString &MyName, Elf64_Word ShType, Elf64_Xword ShFlags,
              Elf64_Xword ShAddralign, Elf64_Xword ShEntsize)
-      : Name(Name), Header() {
+      : Name(MyName), Header() {
     Header.sh_type = ShType;
     Header.sh_flags = ShFlags;
     Header.sh_addralign = ShAddralign;
     Header.sh_entsize = ShEntsize;
   }
 
   /// Set the section number/index after it is finally known.
   void setNumber(SizeT N) {
     // Should only set the number once: from NoSectionNumber -> N.
     assert(Number == NoSectionNumber);
@@ skipping 314 matching lines @@
       Rel.setSymbolAndType(Symbol->getNumber(), Fixup.kind());
       Str.writeAddrOrOffset<IsELF64>(Rel.r_offset);
       Str.writeELFWord<IsELF64>(Rel.r_info);
     }
   }
 }
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEELFSECTION_H