[PGO] Fix a bug in reading text format value profile.

[xur]

Summary

Should use the Valuekind read from the profile.

[davidxl]

lgtm

lib/ProfileData/InstrProfReader.cpp

for (uint32_t VK = 0; VK < NumValueKinds; VK++) {
     for (uint32_t S = 0; S < NumValueSites; S++) {
       VP_READ_ADVANCE(NumValueData);
 
       std::vector<InstrProfValueData> CurrentValues;
       for (uint32_t V = 0; V < NumValueData; V++) {
         CHECK_LINE_END(Line);
         std::pair<StringRef, StringRef> VD = Line->rsplit(':');
         uint64_t TakenCount, Value;
-        if (VK == IPVK_IndirectCallTarget) {
+        if (ValueKind == IPVK_IndirectCallTarget) {
           Symtab->addFuncName(VD.first);
           Value = IndexedInstrProf::ComputeHash(VD.first);
         } else {
           READ_NUM(VD.first, Value);
         }
         READ_NUM(VD.second, TakenCount);
         CurrentValues.push_back({Value, TakenCount});
         Line++;
       }
-      Record.addValueData(VK, S, CurrentValues.data(), NumValueData, nullptr);
+      Record.addValueData(ValueKind, S, CurrentValues.data(), NumValueData,
+                          nullptr);
     }
   }
   return success();
 
 #undef CHECK_LINE_END
 #undef READ_NUM
 #undef VP_READ_ADVANCE
 }