Use HashCodeCombiner.Start

Author: pranavkm

src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorDiagnostic.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System;
@@ -69,7 +69,7 @@ public override bool Equals(RazorDiagnostic obj)
 
         public override int GetHashCode()
         {
-            var hash = new HashCodeCombiner();
+            var hash = HashCodeCombiner.Start();
             hash.Add(Descriptor.GetHashCode());
             hash.Add(Span.GetHashCode());
 

src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorConfiguration.cs

@@ -94,7 +94,7 @@ public virtual bool Equals(RazorConfiguration other)
 
         public override int GetHashCode()
         {
-            var hash = new HashCodeCombiner();
+            var hash = HashCodeCombiner.Start();
             hash.Add(LanguageVersion);
             hash.Add(ConfigurationName);
 

src/Razor/Microsoft.AspNetCore.Razor.Language/src/SourceChange.cs

@@ -125,7 +125,7 @@ public override bool Equals(object obj)
 
         public override int GetHashCode()
         {
-            var hash = new HashCodeCombiner();
+            var hash = HashCodeCombiner.Start();
             hash.Add(Span);
             hash.Add(NewText, StringComparer.Ordinal);
             return hash;

src/Razor/Microsoft.AspNetCore.Razor.Language/src/Syntax/TextSpan.cs

@@ -229,7 +229,7 @@ public override bool Equals(object obj)
         /// </summary>
         public override int GetHashCode()
         {
-            var combiner = new HashCodeCombiner();
+            var combiner = HashCodeCombiner.Start();
             combiner.Add(Start);
             combiner.Add(Length);
 

src/Razor/Microsoft.AspNetCore.Razor.Language/test/HashCodeCombinerTest.cs

@@ -10,8 +10,8 @@ public class HashCodeCombinerTest
         [Fact]
         public void GivenTheSameInputs_ItProducesTheSameOutput()
         {
-            var hashCode1 = new HashCodeCombiner();
-            var hashCode2 = new HashCodeCombiner();
+            var hashCode1 = HashCodeCombiner.Start();
+            var hashCode2 = HashCodeCombiner.Start();
 
             hashCode1.Add(42);
             hashCode1.Add("foo");

src/Razor/Microsoft.CodeAnalysis.Razor/src/AssemblyIdentityEqualityComparer.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System;
@@ -40,7 +40,7 @@ public override int GetHashCode(AssemblyIdentity obj)
                     return 0;
                 }
 
-                var hash = new HashCodeCombiner();
+                var hash = HashCodeCombiner.Start();
                 hash.Add(obj.Name, StringComparer.OrdinalIgnoreCase);
                 hash.Add(obj.Version);
                 return hash;