[clang] [clang] Fix assertion failure with deleted overloaded unary operators (PR #78316)

[Mariya Podchishchaeva via cfe-commits]

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@@ -14310,8 +14310,8 @@ Sema::CreateOverloadedUnaryOp(SourceLocation OpLoc, UnaryOperatorKind Opc,
         PartialDiagnosticAt(OpLoc, PDiag(diag::err_ovl_deleted_oper)
                                        << UnaryOperator::getOpcodeStr(Opc)
                                        << Input->getSourceRange()),
-        *this, OCD_AllCandidates, ArgsArray, UnaryOperator::getOpcodeStr(Opc),
-        OpLoc);
+        *this, OCD_AllCandidates, ArgsArray.slice(1),
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Fznamznon wrote:

The problem `ArgArray.slice(1)` solves is that `CreateOverloadedUnaryOp` fills first element `ArgsArray` with the object whose method was called. Later in `NoteCandidates` size of `ArgsArray` is passed further and it eventually ends up compared to number of function candidate parameters which never includes implicit object parameter.

https://github.com/llvm/llvm-project/pull/78316