[clang] [clang-format] Add options to control wrapped lambda brace indent. (PR #143249)

[Björn Schäpers via cfe-commits]

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@@ -1334,12 +1334,15 @@ unsigned ContinuationIndenter::getNewLineColumn(const LineState &State) {
            Style.IndentWidth;
   }
 
-  if (Style.BraceWrapping.BeforeLambdaBody &&
-      Style.BraceWrapping.IndentBraces && Current.is(TT_LambdaLBrace)) {
+  if (Style.BraceWrapping.BeforeLambdaBody && Current.is(TT_LambdaLBrace)) {
+    const auto Nested = Current.NestingLevel != 0;
     const auto From = Style.LambdaBodyIndentation == FormatStyle::LBI_Signature
                           ? CurrentState.Indent
                           : State.FirstIndent;
-    return From + Style.IndentWidth;
+    const auto Indent =
+        (Style.BraceWrapping.IndentBracesLambdaNested && Nested) ||
+        (Style.BraceWrapping.IndentBracesLambdaUnnested && !Nested);
+    return From + (Indent * Style.IndentWidth);
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HazardyKnusperkeks wrote:

Before it didn't return if `IndentBraces` was `false`. Should we keep that behavior?

https://github.com/llvm/llvm-project/pull/143249