[llvm] [NFC][TableGen] Emit more readable builtin string table. (PR #105445)

[Sergei Barannikov via llvm-commits]

================
@@ -637,15 +636,17 @@ void IntrinsicEmitter::EmitIntrinsicToBuiltinMap(
 
   // Populate the string table with the names of all the builtins after
   // removing this common prefix.
-  StringToOffsetTable Table;
+  SequenceToOffsetTable<StringRef> Table;
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s-barannikov wrote:

I agree with @arsenm

If the main purpose of this PR is to make the emitted string table more readable, I think it can be achieved in other ways. For example, by changing EmitCharArray to something like:
```
  void EmitNullSeparatedString(raw_ostream &O) {
    for (StringRef Str : split(AggregateString, '\0'))
      O << "    \"" << Str << "\\0\"\n";
  }
```


https://github.com/llvm/llvm-project/pull/105445