Adjust RecordDecompiler to changes in Roslyn 3.10.0

ICSharpCode.Decompiler/CSharp/RecordDecompiler.cs

@@ -663,6 +663,10 @@ namespace ICSharpCode.Decompiler.CSharp
 			// virtual bool Equals(R? other) {
 			//    return other != null && EqualityContract == other.EqualityContract && EqualityComparer<int>.Default.Equals(A, other.A) && ...;
 			// }
+			// Starting with Roslyn 3.10, it's:
+			// virtual bool Equals(R? other) {
+			//    return this == other || other != null && EqualityContract == other.EqualityContract && EqualityComparer<int>.Default.Equals(A, other.A) && ...;
+			// }
 			Debug.Assert(method.Name == "Equals" && method.Parameters.Count == 1);
 			if (method.Parameters.Count != 1)
 				return false;
@@ -680,6 +684,17 @@ namespace ICSharpCode.Decompiler.CSharp
 			var variables = body.Ancestors.OfType<ILFunction>().Single().Variables;
 			var other = variables.Single(v => v.Kind == VariableKind.Parameter && v.Index == 0);
 			Debug.Assert(IsRecordType(other.Type));
+			if (returnValue.MatchLogicOr(out var lhs, out var rhs))
+			{
+				// this == other || ...
+				if (!lhs.MatchCompEquals(out var compLeft, out var compRight))
+					return false;
+				if (!compLeft.MatchLdThis())
+					return false;
+				if (!compRight.MatchLdLoc(other))
+					return false;
+				returnValue = rhs;
+			}
 			var conditions = UnpackLogicAndChain(returnValue);
 			Debug.Assert(conditions.Count >= 1);
 			int pos = 0;

packages.props

@@ -10,7 +10,7 @@
 		<SystemCompilerServicesUnsafeVersion>5.0.0</SystemCompilerServicesUnsafeVersion>
 		<SystemCompositionVersion>5.0.1</SystemCompositionVersion>
 		<ILAsmVersion>5.0.0</ILAsmVersion> <!-- Microsoft.NETCore.ILAsm -->
-		<RoslynVersion>3.9.0</RoslynVersion> <!-- Microsoft.CodeAnalysis.* -->
+		<RoslynVersion>3.10.0-3.final</RoslynVersion> <!-- Microsoft.CodeAnalysis.* -->
 		<MonoCecilVersion>0.11.3</MonoCecilVersion>
 		<AvalonEditVersion>6.1.1</AvalonEditVersion>
 		<NUnitVersion>3.12.0</NUnitVersion>