MC: Fix dumping of MCFragment values

[sbc100]

Summary

Without this cast the "char" overload of operator<< is
chosen and the values are output as an ascii char rather
than an integer.

[sbc100]

use cast

lib/MC/MCFragment.cpp

for (unsigned i = 0, e = Contents.size(); i != e; ++i) {
       if (i) OS << ",";
       OS << hexdigit((Contents[i] >> 4) & 0xF) << hexdigit(Contents[i] & 0xF);
     }
     OS << "] (" << Contents.size() << " bytes)";
     break;
   }
   case MCFragment::FT_Fill:  {
     const MCFillFragment *FF = cast<MCFillFragment>(this);
-    OS << " Value:" << FF->getValue() << " Size:" << FF->getSize();
+    OS << " Value:" << static_cast<unsigned>(FF->getValue())
+       << " Size:" << FF->getSize();
     break;
   }
   case MCFragment::FT_Relaxable:  {
     const MCRelaxableFragment *F = cast<MCRelaxableFragment>(this);
     OS << "\n       ";
     OS << " Inst:";
     F->getInst().dump_pretty(OS);
     break;
   }
   case MCFragment::FT_Org:  {
     const MCOrgFragment *OF = cast<MCOrgFragment>(this);
     OS << "\n       ";
-    OS << " Offset:" << OF->getOffset() << " Value:" << OF->getValue();
+    OS << " Offset:" << OF->getOffset()
+       << " Value:" << static_cast<unsigned>(OF->getValue());
     break;
   }
   case MCFragment::FT_Dwarf:  {
     const MCDwarfLineAddrFragment *OF = cast<MCDwarfLineAddrFragment>(this);
     OS << "\n       ";
     OS << " AddrDelta:" << OF->getAddrDelta()
        << " LineDelta:" << OF->getLineDelta();
     break;