Annotate test code.

Author: JohanLarsson

PropertyChangedAnalyzers.Test/INPC023InstanceEquals/CodeFix.cs

@@ -15,7 +15,7 @@ public static class CodeFix
         public static void WhenNullable(string type, string expected)
         {
             var before = @"
-#nullable enable
+#pragma warning disable CS8618
 namespace N
 {
     using System.ComponentModel;
@@ -50,7 +50,7 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
 }".AssertReplace("int?", type);
 
             var after = @"
-#nullable enable
+#pragma warning disable CS8618
 namespace N
 {
     using System.ComponentModel;
@@ -94,7 +94,7 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
         public static void Negated(string type, string expected)
         {
             var before = @"
-#nullable enable
+#pragma warning disable CS8618
 namespace N
 {
     using System.ComponentModel;
@@ -127,7 +127,7 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
 }".AssertReplace("int?", type);
 
             var after = @"
-#nullable enable
+#pragma warning disable CS8618
 namespace N
 {
     using System.ComponentModel;

PropertyChangedAnalyzers.Test/NullableFixTests/NullableFixTests.cs

@@ -86,7 +86,6 @@ protected virtual void OnPropertyChanged(string propertyName)
         public static void DeclareEventNullableWhenConstructor()
         {
             var before = @"
-#pragma warning disable CS8612
 namespace N
 {
     using System.ComponentModel;
@@ -100,7 +99,7 @@ public class C : INotifyPropertyChanged
             this.p = p;
         }
 
-        public event PropertyChangedEventHandler? PropertyChanged;
+        public event PropertyChangedEventHandler PropertyChanged;
 
         public int P
         {
@@ -125,7 +124,6 @@ protected virtual void OnPropertyChanged(string propertyName)
 }";
 
             var after = @"
-#pragma warning disable CS8612
 namespace N
 {
     using System.ComponentModel;