Fix build warnings with latest C# compiler

[tfs-changeset: 1662020]

3 files changed, 4 insertions, 3 deletions

diff --git a/src/Common/src/TypeSystem/IL/Stubs/DelegateMethodILEmitter.cs b/src/Common/src/TypeSystem/IL/Stubs/DelegateMethodILEmitter.cs
index 32fa232e9..ef798375d 100644
--- a/src/Common/src/TypeSystem/IL/Stubs/DelegateMethodILEmitter.cs
+++ b/src/Common/src/TypeSystem/IL/Stubs/DelegateMethodILEmitter.cs
@@ -29,7 +29,7 @@ namespace Internal.IL.Stubs
             if (method.Name == ".ctor")
             {
                 // We only support delegate creation if the IL follows the delegate creation verifiability requirements
-                // described in ECMA-335 III.4.21 (newobj – create a new object). The codegen is expected to
+                // described in ECMA-335 III.4.21 (newobj - create a new object). The codegen is expected to
                 // intrinsically expand the pattern.
                 // If the delegate creation doesn't follow the pattern, we generate code that throws at runtime.
                 // We could potentially implement this (unreliably) through the use of reflection metadata,
diff --git a/src/System.Private.CoreLib/src/System/Runtime/Loader/AssemblyLoadContext.cs b/src/System.Private.CoreLib/src/System/Runtime/Loader/AssemblyLoadContext.cs
index aa960c752..6ad477ead 100644
--- a/src/System.Private.CoreLib/src/System/Runtime/Loader/AssemblyLoadContext.cs
+++ b/src/System.Private.CoreLib/src/System/Runtime/Loader/AssemblyLoadContext.cs
@@ -13,6 +13,7 @@ namespace System.Runtime.Loader
         public static Assembly[] GetLoadedAssemblies() => ReflectionAugments.ReflectionCoreCallbacks.GetLoadedAssemblies(); 
 
         // These events are never called
+#pragma warning disable 0067
         public static event AssemblyLoadEventHandler AssemblyLoad;
         public static event ResolveEventHandler TypeResolve;
         public static event ResolveEventHandler ResourceResolve;
@@ -20,6 +21,7 @@ namespace System.Runtime.Loader
 
         public event Func<AssemblyLoadContext, AssemblyName, Assembly> Resolving;
         public event Action<AssemblyLoadContext> Unloading;
+#pragma warning restore 0067
 
         public static AssemblyLoadContext Default { get; } = new DefaultAssemblyLoadContext();
 
diff --git a/src/System.Private.CoreLib/src/System/Text/Encoding.cs b/src/System.Private.CoreLib/src/System/Text/Encoding.cs
index 99b3dda9a..6c50e7cd5 100644
--- a/src/System.Private.CoreLib/src/System/Text/Encoding.cs
+++ b/src/System.Private.CoreLib/src/System/Text/Encoding.cs
@@ -147,7 +147,6 @@ namespace System.Text
         
         internal CodePageDataItem dataItem = null;
 
-        private string _webName = null;
         private string _encodingName = null;
 
         // Because of encoders we may be read only
@@ -179,7 +178,7 @@ namespace System.Text
         }
 
         // This constructor is needed to allow any sub-classing implementation to provide encoder/decoder fallback objects 
-        // because the encoding object is always created as read-only object and don’t allow setting encoder/decoder fallback 
+        // because the encoding object is always created as read-only object and don't allow setting encoder/decoder fallback 
         // after the creation is done. 
         protected Encoding(int codePage, EncoderFallback encoderFallback, DecoderFallback decoderFallback)
         {