Micro cleanup: use an array of const char, rather than an array of char, as the

type of the string literal implicitly used for a raw user-defined literal call.
No test; this has no semantic impact.

llvm-svn: 173309

clang/lib/Sema/SemaExpr.cpp

@@ -2768,7 +2768,7 @@ ExprResult Sema::ActOnNumericConstant(const Token &Tok, Scope *UDLScope) {
       SourceLocation TokLoc = Tok.getLocation();
       unsigned Length = Literal.getUDSuffixOffset();
       QualType StrTy = Context.getConstantArrayType(
-          Context.CharTy, llvm::APInt(32, Length + 1),
+          Context.CharTy.withConst(), llvm::APInt(32, Length + 1),
           ArrayType::Normal, 0);
       Expr *Lit = StringLiteral::Create(
           Context, StringRef(TokSpelling.data(), Length), StringLiteral::Ascii,