[clang] [clang][NFC] Extract LookupOverloadedUnaryOp (PR #210567)

[Corentin Jabot via cfe-commits]

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@@ -15221,6 +15221,32 @@ ExprResult Sema::BuildCXXMemberCallExpr(Expr *E, NamedDecl *FoundDecl,
   return CheckForImmediateInvocation(CE, CE->getDirectCallee());
 }
 
+void Sema::LookupOverloadedUnaryOp(OverloadCandidateSet &CandidateSet,
+                                   OverloadedOperatorKind Op,
+                                   const UnresolvedSetImpl &Fns,
+                                   ArrayRef<Expr *> Args, bool PerformADL) {
+  assert(Op != OO_None && "Invalid opcode for overloaded unary operator");
+
+  SourceLocation OpLoc = CandidateSet.getLocation();
+  DeclarationName OpName = Context.DeclarationNames.getCXXOperatorName(Op);
+
+  // Add the candidates from the given function set.
+  AddNonMemberOperatorCandidates(Fns, Args, CandidateSet);
+
+  // Add operator candidates that are member functions.
+  AddMemberOperatorCandidates(Op, OpLoc, Args, CandidateSet);
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cor3ntin wrote:

These comments are not actually adding anything, feel free to drop them

https://github.com/llvm/llvm-project/pull/210567