Fix a -Wcovered-switch-default warning in emitJumpTables.

src/IceCfg.cpp

 //===- subzero/src/IceCfg.cpp - Control flow graph implementation ---------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 609 matching lines @@
         JT.pushTarget(
             getAssembler()->getOrCreateCfgNodeLabel(Index)->getPosition());
       }
     }
   } break;
   case FT_Asm: {
     // Emit the assembly directly so we don't need to hang on to all the names
     for (const InstJumpTable *JumpTable : JumpTables)
       getTarget()->emitJumpTable(this, JumpTable);
   } break;
-  default:
-    llvm::report_fatal_error("Invalid out file type.");
-    break;
   }
 }
 
 void Cfg::emit() {
   if (!BuildDefs::dump())
     return;
   TimerMarker T(TimerStack::TT_emit, this);
   if (Ctx->getFlags().getDecorateAsm()) {
     renumberInstructions();
     getVMetadata()->init(VMK_Uses);
@@ skipping 73 matching lines @@
     }
   }
   // Print each basic block
   for (CfgNode *Node : Nodes)
     Node->dump(this);
   if (isVerbose(IceV_Instructions))
     Str << "}\n";
 }
 
 } // end of namespace Ice