simplify

src/Features/Core/Portable/AddConstructorParametersFromMembers/AddConstructorParametersFromMembersCodeRefactoringProvider.State.cs

@@ -115,8 +115,9 @@ private static bool SelectedMembersAlreadyExistAsParameters(ImmutableArray<strin
 
             private static ConstructorCandidate CreateConstructorCandidate(ImmutableArray<IParameterSymbol> parametersForSelectedMembers, ImmutableArray<ISymbol> selectedMembers, IMethodSymbol constructor)
             {
-                var missingParametersBuilder = ArrayBuilder<IParameterSymbol>.GetInstance();
-                var missingMembersBuilder = ArrayBuilder<ISymbol>.GetInstance();
+                using var _0 = ArrayBuilder<IParameterSymbol>.GetInstance(out var missingParametersBuilder);
+                using var _1 = ArrayBuilder<ISymbol>.GetInstance(out var missingMembersBuilder);
+
                 var constructorParamNames = constructor.Parameters.SelectAsArray(p => p.Name);
                 var zippedParametersAndSelectedMembers =
                     parametersForSelectedMembers.Zip(selectedMembers, (parameter, selectedMember) => (parameter, selectedMember));
@@ -131,7 +132,7 @@ private static ConstructorCandidate CreateConstructorCandidate(ImmutableArray<IP
                 }
 
                 return new ConstructorCandidate(
-                    constructor, missingMembersBuilder.ToImmutableAndFree(), missingParametersBuilder.ToImmutableAndFree());
+                    constructor, missingMembersBuilder.ToImmutable(), missingParametersBuilder.ToImmutable());
             }
         }
     }