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

[Björn Schäpers via cfe-commits]

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@@ -3889,10 +3925,20 @@ bool UnwrappedLineParser::parseEnum() {
   if (!Style.AllowShortEnumsOnASingleLine) {
     addUnwrappedLine();
     Line->Level += 1;
+  } else if (Style.IndentPPDirectives ==
+             FormatStyle::PPDIS_BeforeHashWithCode) {
+    // For BeforeHashWithCode, flush the enum declaration as its own
+    // UnwrappedLine (like AllowShortEnumsOnASingleLine=false does) so that
+    // body tokens start in a fresh line.  Each PP-separated segment of the
+    // body can then be emitted at its correct indentation via BWHCCodeLine.
+    addUnwrappedLine();
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HazardyKnusperkeks wrote:

You do the same as the `if`, and then after `parseBracedList` again. Just store the condition in a bool, and merge both places.

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