[TableGen] Address Haohai's comments

Author: Yuanke Luo

llvm/test/TableGen/DFAPacketizer.td

@@ -27,9 +27,7 @@ def Itin {
 // CHECK-NEXT:   static const unsigned TestTargetProcIdToProcResourceIdxTable[][2] = {
 // CHECK-NEXT:     { 2,  1 }, // TestItinerariesModel
 // CHECK-NEXT:   };
-// CHECK-NEXT:   auto It = std::lower_bound(
-// CHECK-NEXT:       std::begin(TestTargetProcIdToProcResourceIdxTable),
-// CHECK-NEXT:       std::end(TestTargetProcIdToProcResourceIdxTable), ProcID,
+// CHECK-NEXT:   auto It = llvm::lower_bound(TestTargetProcIdToProcResourceIdxTable, ProcID,
 // CHECK-NEXT:       [](const unsigned LHS[], unsigned Val) { return LHS[0] < Val; });
 // CHECK-NEXT:   assert(*It[0] == ProcID);
 // CHECK-NEXT:   return (*It)[1];

llvm/utils/TableGen/DFAPacketizerEmitter.cpp

@@ -277,11 +277,8 @@ void DFAPacketizerEmitter::emitForItineraries(
        << Model->ModelName << "\n";
   }
   OS << "  };\n"
-     << "  auto It = std::lower_bound(\n"
-     << "      std::begin(" << TargetName << DFAName
-     << "ProcIdToProcResourceIdxTable),\n"
-     << "      std::end(" << TargetName << DFAName
-     << "ProcIdToProcResourceIdxTable), ProcID,\n"
+     << "  auto It = llvm::lower_bound(" << TargetName << DFAName
+     << "ProcIdToProcResourceIdxTable, ProcID,\n"
      << "      [](const unsigned LHS[], unsigned Val) { return LHS[0] < Val; "
         "});\n"
      << "  assert(*It[0] == ProcID);\n"