[llvm] [MC,ELF] Emit warning if a string constant contains newline char. (PR #98060)

[Dmitriy Chestnykh via llvm-commits]

================
@@ -613,7 +613,7 @@ bool DarwinAsmParser::parseDirectiveLinkerOption(StringRef IDVal, SMLoc) {
       return TokError("expected string in '" + Twine(IDVal) + "' directive");
 
     std::string Data;
-    if (getParser().parseEscapedString(Data))
+    if (getParser().parseEscapedString(Data, false))
----------------
chestnykh wrote:

> No, I mean the warning should be issued for most/all of such directives, not only for .string/.ascii. Sorry if I wasn't clear.

No problem :)
my understanding was very close.
Okay, then i'm going to remove the second argument of `parseEscapedString` and emit warning unconditionally.

https://github.com/llvm/llvm-project/pull/98060