[DWARFYAML] Rename checkListEntryOperands() to checkOperandCount(). NFC.

[Higuoxing]

Summary

This patch renames checkListEntryOperands() to checkOperandCount(), so
that we are able to check DWARF expression operands using the same
function.

[labath]

Seems reasonable, but I think a better spelling of the name would be checkOperandNumber (no s) -- "check number of operands" vs "check operand number"

[Higuoxing]

checkOperandsNumber -> checkOperandNumber.

Thanks for reviewing!

[jhenderson]

I'd actually go one step further and call it checkOperandCount. I think checkOperandNumber to me suggests "check the number of the operand X". LGTM, with that tweak.

[Higuoxing]

Address comments.

[Higuoxing]

Thanks for reviewing!

llvm/lib/ObjectYAML/DWARFEmitter.cpp

for (const DWARFYAML::StringOffsetsTable &Table : *DI.DebugStrOffsets) {
 
     for (uint64_t Offset : Table.Offsets)
       writeDWARFOffset(Offset, Table.Format, OS, DI.IsLittleEndian);
   }
 
   return Error::success();
 }
 
-static Error checkListEntryOperands(StringRef EncodingString,
-                                    ArrayRef<yaml::Hex64> Values,
-                                    uint64_t ExpectedOperands) {
+static Error checkOperandsNumber(StringRef EncodingString,
   if (Values.size() != ExpectedOperands)
     return createStringError(
         errc::invalid_argument,
         "invalid number (%zu) of operands for the operator: %s, %" PRIu64
         " expected",
         Values.size(), EncodingString.str().c_str(), ExpectedOperands);
 
   return Error::success();
static Expected<uint64_t> writeListEntry(raw_ostream &OS,
                                          uint8_t AddrSize,
                                          bool IsLittleEndian) {
   uint64_t BeginOffset = OS.tell();
   writeInteger((uint8_t)Entry.Operator, OS, IsLittleEndian);
 
   StringRef EncodingName = dwarf::RangeListEncodingString(Entry.Operator);
 
   auto CheckOperands = [&](uint64_t ExpectedOperands) -> Error {
-    return checkListEntryOperands(EncodingName, Entry.Values, ExpectedOperands);
+    return checkOperandsNumber(EncodingName, Entry.Values, ExpectedOperands);
   };
 
   auto WriteAddress = [&](uint64_t Addr) -> Error {
     return writeListEntryAddress(EncodingName, OS, Addr, AddrSize,
                                  IsLittleEndian);
   };
 
   switch (Entry.Operator) {