[clang] [clang] do not abort on u8 string in inline asm (PR #177096)

[via cfe-commits]

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@@ -9906,6 +9906,10 @@ let CategoryName = "Inline Assembly Issue" in {
   def err_asm_operand_empty_string : Error<
      "cannot use an empty string literal in 'asm'">;
 
+  def err_asm_string_literal_not_ordinary : Error<
+     "cannot use unicode string literal in 'asm'">;
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Sirraide wrote:

Fwiw, for `asm(u"")` we *do* say ‘unicode string literal’ (or ‘wide string literal’ for `asm(L"")`), which imo is better because I don’t expect most people to know what a ‘non-ordinary string literal’ is supposed to be—can we just reuse the diagnostic that’s used for that?

https://github.com/llvm/llvm-project/pull/177096