Simplify

src/Workspaces/Core/Portable/SymbolKey/SymbolKey.PooledArrayBuilder.cs

+// Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using Microsoft.CodeAnalysis.PooledObjects;
+
+namespace Microsoft.CodeAnalysis
+{
+    internal partial struct SymbolKey
+    {
+        private ref struct PooledArrayBuilder<T>
+        {
+            public readonly ArrayBuilder<T> Builder;
+
+            private PooledArrayBuilder(ArrayBuilder<T> builder)
+                => Builder = builder;
+
+            public int Count => Builder.Count;
+            public T this[int index] => Builder[index];
+
+            public void AddIfNotNull(T value)
+            {
+                if (value != null)
+                {
+                    Builder.Add(value);
+                }
+            }
+
+            public void Dispose() => Builder.Free();
+
+            public ImmutableArray<T> ToImmutable() => Builder.ToImmutable();
+
+            public ArrayBuilder<T>.Enumerator GetEnumerator() => Builder.GetEnumerator();
+
+            public static PooledArrayBuilder<T> GetInstance()
+                => new PooledArrayBuilder<T>(ArrayBuilder<T>.GetInstance());
+
+            public static PooledArrayBuilder<T> GetInstance(int capacity)
+                => new PooledArrayBuilder<T>(ArrayBuilder<T>.GetInstance(capacity));
+
+            public void AddValuesIfNotNull(IEnumerable<T> values)
+            {
+                foreach (var value in values)
+                {
+                    AddIfNotNull(value);
+                }
+            }
+
+            public void AddValuesIfNotNull(ImmutableArray<T> values)
+            {
+                foreach (var value in values)
+                {
+                    AddIfNotNull(value);
+                }
+            }
+        }
+    }
+}

src/Workspaces/Core/Portable/SymbolKey/SymbolKey.cs

@@ -5,7 +5,6 @@
 using System.Collections.Immutable;
 using System.Diagnostics;
 using System.Threading;
-using Microsoft.CodeAnalysis.PooledObjects;
 using Microsoft.CodeAnalysis.Shared.Utilities;
 
 namespace Microsoft.CodeAnalysis
@@ -247,52 +246,5 @@ private static string GetName(string metadataName)
 
             return true;
         }
-
-        private ref struct PooledArrayBuilder<T>
-        {
-            public readonly ArrayBuilder<T> Builder;
-
-            private PooledArrayBuilder(ArrayBuilder<T> builder)
-                => Builder = builder;
-
-            public int Count => Builder.Count;
-            public T this[int index] => Builder[index];
-
-            public void AddIfNotNull(T value)
-            {
-                if (value != null)
-                {
-                    Builder.Add(value);
-                }
-            }
-
-            public void Dispose() => Builder.Free();
-
-            public ImmutableArray<T> ToImmutable() => Builder.ToImmutable();
-
-            public ArrayBuilder<T>.Enumerator GetEnumerator() => Builder.GetEnumerator();
-
-            public static PooledArrayBuilder<T> GetInstance()
-                => new PooledArrayBuilder<T>(ArrayBuilder<T>.GetInstance());
-
-            public static PooledArrayBuilder<T> GetInstance(int capacity)
-                => new PooledArrayBuilder<T>(ArrayBuilder<T>.GetInstance(capacity));
-
-            public void AddValuesIfNotNull(IEnumerable<T> values)
-            {
-                foreach (var value in values)
-                {
-                    AddIfNotNull(value);
-                }
-            }
-
-            public void AddValuesIfNotNull(ImmutableArray<T> values)
-            {
-                foreach (var value in values)
-                {
-                    AddIfNotNull(value);
-                }
-            }
-        }
     }
 }