Extract type into its own file.

src/Features/Core/Portable/Features.csproj

@@ -120,6 +120,7 @@
     <Compile Include="Navigation\NavigableItemFactory.DeclaredSymbolNavigableItem.cs" />
     <Compile Include="Navigation\NavigableItemFactory.SymbolLocationNavigableItem.cs" />
     <Compile Include="AddImport\CodeActions\PackageReference.ParentCodeAction.cs" />
+    <Compile Include="Shared\Utilities\PatternMatches.cs" />
     <Compile Include="Remote\RemoteArguments.cs" />
     <Compile Include="Structure\BlockStructureOptions.cs" />
     <Compile Include="AddImport\CodeActions\SymbolReference.SymbolReferenceCodeAction.cs" />

src/Features/Core/Portable/Shared/Utilities/PatternMatcher.cs

@@ -10,33 +10,6 @@
 
 namespace Microsoft.CodeAnalysis.Shared.Utilities
 {
-    internal struct PatternMatches
-    {
-        public static readonly PatternMatches Empty = new PatternMatches(
-            ImmutableArray<PatternMatch>.Empty, ImmutableArray<PatternMatch>.Empty);
-
-        public readonly ImmutableArray<PatternMatch> CandidateMatches;
-        public readonly ImmutableArray<PatternMatch> ContainerMatches;
-
-        public PatternMatches(ImmutableArray<PatternMatch> candidateMatches,
-                              ImmutableArray<PatternMatch> containerMatches = default(ImmutableArray<PatternMatch>))
-        {
-            CandidateMatches = candidateMatches.NullToEmpty();
-            ContainerMatches = containerMatches.NullToEmpty();
-        }
-
-        public bool IsEmpty => CandidateMatches.IsEmpty && ContainerMatches.IsEmpty;
-
-        internal bool All(Func<PatternMatch, bool> predicate)
-        {
-            return CandidateMatches.All(predicate) && ContainerMatches.All(predicate);
-        }
-
-        internal bool Any(Func<PatternMatch, bool> predicate)
-        {
-            return CandidateMatches.Any(predicate) || ContainerMatches.Any(predicate);
-        }
-    }
 
     /// <summary>
     /// The pattern matcher is thread-safe.  However, it maintains an internal cache of

src/Features/Core/Portable/Shared/Utilities/PatternMatches.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;
+using System.Collections.Immutable;
+using System.Linq;
+
+namespace Microsoft.CodeAnalysis.Shared.Utilities
+{
+    internal struct PatternMatches
+    {
+        public static readonly PatternMatches Empty = new PatternMatches(
+            ImmutableArray<PatternMatch>.Empty, ImmutableArray<PatternMatch>.Empty);
+
+        public readonly ImmutableArray<PatternMatch> CandidateMatches;
+        public readonly ImmutableArray<PatternMatch> ContainerMatches;
+
+        public PatternMatches(ImmutableArray<PatternMatch> candidateMatches,
+                              ImmutableArray<PatternMatch> containerMatches = default(ImmutableArray<PatternMatch>))
+        {
+            CandidateMatches = candidateMatches.NullToEmpty();
+            ContainerMatches = containerMatches.NullToEmpty();
+        }
+
+        public bool IsEmpty => CandidateMatches.IsEmpty && ContainerMatches.IsEmpty;
+
+        internal bool All(Func<PatternMatch, bool> predicate)
+        {
+            return CandidateMatches.All(predicate) && ContainerMatches.All(predicate);
+        }
+
+        internal bool Any(Func<PatternMatch, bool> predicate)
+        {
+            return CandidateMatches.Any(predicate) || ContainerMatches.Any(predicate);
+        }
+    }
+}
\ No newline at end of file