Fixing edgecase with lambda expressions

Src/CSharpier.Core/CSharp/SyntaxPrinter/SyntaxNodePrinters/InvocationExpression.cs

@@ -116,6 +116,7 @@ is ArrayCreationExpressionSyntax
                 parent is ExpressionStatementSyntax expressionStatementSyntax
                 && expressionStatementSyntax.SemicolonToken.LeadingTrivia.Any(o => o.IsComment())
             )
+            || groups.Count == 1
             ? expanded
             : Doc.ConditionalGroup(Doc.Concat(oneLine), expanded);
     }

Src/CSharpier.Core/CSharp/SyntaxPrinter/SyntaxNodePrinters/ParenthesizedLambdaExpression.cs

@@ -27,13 +27,24 @@ public static Doc PrintHead(ParenthesizedLambdaExpressionSyntax node, PrintingCo
 
     public static Doc PrintBody(ParenthesizedLambdaExpressionSyntax node, PrintingContext context)
     {
-        return node.Body switch
+        if (node.Body is BlockSyntax block)
         {
-            BlockSyntax block => Doc.Concat(
+            return Doc.Concat(
                 block.Statements.Count > 0 ? Doc.HardLine : " ",
                 Block.Print(block, context)
-            ),
-            _ => Doc.Group(Doc.Indent(Doc.Line, Node.Print(node.Body, context))),
-        };
+            );
+        }
+
+        var body = Node.Print(node.Body, context);
+
+        if (
+            node.ParameterList.Parameters.Count == 0
+            && node.Parent?.Parent is ArgumentListSyntax { Arguments.Count: 1 }
+        )
+        {
+            return Doc.IfBreak(Doc.Indent(Doc.Line, body), Doc.Group(Doc.Indent(Doc.Line, body)));
+        }
+
+        return Doc.Group(Doc.Indent(Doc.Line, body));
     }
 }

Src/CSharpier.Tests/FormattingTests/TestFiles/cs/ParenthesizedLambdaExpressions.test

@@ -92,5 +92,21 @@ public class ClassName
         var returnType = object (bool o) => o ? 1 : "two";
         var returnTypeWithAsync = async object (bool o) => o ? 1 : "two";
         var returnTypeWithAttribute = [Attribute] object (bool o) => o ? 1 : "two";
+
+        CallMethod(() => CallAnotherMethod______________________________________________________());
+        CallMethod(() =>
+            CallAnotherMethod______________________________________________________1()
+        );
+        CallMethod(() =>
+            CallAnotherMethod______________________________________________________12()
+        );
+        CallMethod(() =>
+            CallAnotherMethod______________________________________________________123()
+        );
+
+        CallMethod(
+            CallAnotherMethod_________________(),
+            () => CallAnotherMethod_________________()
+        );
     }
 }