Update based on review feedback

Author: AaronBallman

clang/lib/Lex/LiteralSupport.cpp

@@ -1420,7 +1420,7 @@ void NumericLiteralParser::ParseNumberStartingWithZero(SourceLocation TokLoc) {
   }
 
   // Parse a potential octal literal prefix.
-  bool SawOctalPrefix = false, IsNakedZero = false;
+  bool SawOctalPrefix = false, IsSingleZero = false;
   if ((c1 == 'O' || c1 == 'o') && (s[1] >= '0' && s[1] <= '7')) {
     unsigned DiagId;
     if (LangOpts.C2y)
@@ -1439,7 +1439,7 @@ void NumericLiteralParser::ParseNumberStartingWithZero(SourceLocation TokLoc) {
     // If we still have an octal value but we did not see an octal prefix,
     // diagnose as being an obsolescent feature starting in C2y.
     if (radix == 8 && LangOpts.C2y && !SawOctalPrefix && !hadError &&
-        !IsNakedZero)
+        !IsSingleZero)
       Diags.Report(TokLoc, diag::warn_unprefixed_octal_deprecated);
   });
 
@@ -1455,7 +1455,7 @@ void NumericLiteralParser::ParseNumberStartingWithZero(SourceLocation TokLoc) {
   if (s != PossibleNewDigitStart)
     DigitsBegin = PossibleNewDigitStart;
   else
-    IsNakedZero = s == ThisTokEnd; // Is the only thing we've seen a 0?
+    IsSingleZero = (s == ThisTokEnd); // Is the only thing we've seen a 0?
 
   if (s == ThisTokEnd)
     return; // Done, simple octal number like 01234