[clang] New indent pp directives before hash with code (PR #186686)

[Björn Schäpers via cfe-commits]

================
@@ -1556,7 +1564,8 @@ unsigned UnwrappedLineFormatter::format(
       if (!DryRun) {
         bool LastLine = TheLine.First->is(tok::eof);
         formatFirstToken(TheLine, PreviousLine, PrevPrevLine, Lines, Indent,
-                         LastLine ? LastStartColumn : NextStartColumn + Indent);
+                         LastLine ? LastStartColumn : NextStartColumn + Indent,
+                         0);
----------------
HazardyKnusperkeks wrote:

```suggestion
                         /*PPNestingLevel=*/0);
```
A stray `0` is not readable.

https://github.com/llvm/llvm-project/pull/186686