Remove capturing lambda from binding hot path (#41055)

Capturing lambdas should be avoided in core compiler code
as they generate excess allocations

Fixes #41054

src/Compilers/CSharp/Portable/Binder/Binder_Expressions.cs

@@ -274,15 +274,22 @@ internal BoundExpression BindToNaturalType(BoundExpression expression, Diagnosti
                     }
                     break;
                 case BoundTupleLiteral sourceTuple:
+                    {
+                        var boundArgs = ArrayBuilder<BoundExpression>.GetInstance(sourceTuple.Arguments.Length);
+                        foreach (var arg in sourceTuple.Arguments)
+                        {
+                            boundArgs.Add(BindToNaturalType(arg, diagnostics, reportDefaultMissingType));
+                        }
                         result = new BoundConvertedTupleLiteral(
                             sourceTuple.Syntax,
                             sourceTuple,
                             wasTargetTyped: false,
-                        sourceTuple.Arguments.SelectAsArray(e => BindToNaturalType(e, diagnostics, reportDefaultMissingType)),
+                            boundArgs.ToImmutableAndFree(),
                             sourceTuple.ArgumentNamesOpt,
                             sourceTuple.InferredNamesOpt,
                             sourceTuple.Type, // same type to keep original element names
                             sourceTuple.HasErrors).WithSuppression(sourceTuple.IsSuppressed);
+                    }
                     break;
                 case BoundDefaultLiteral defaultExpr:
                     {