Make the specific code mappings storages internal.

ICSharpCode.Decompiler/Ast/CSharpCodeMapping.cs

@@ -12,7 +12,7 @@ namespace ICSharpCode.Decompiler.Ast
 	/// <summary>
 	/// Stores the C# code mappings.
 	/// </summary>
-	public static class CSharpCodeMapping
+	static class CSharpCodeMapping
 	{
 		static ConcurrentDictionary<string, List<MemberMapping>> codeMappings = new ConcurrentDictionary<string, List<MemberMapping>>();
 		

ICSharpCode.Decompiler/Disassembler/ILCodeMapping.cs

@@ -10,7 +10,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 	/// <summary>
 	/// Stores the IL code mappings.
 	/// </summary>
-	public static class ILCodeMapping
+	static class ILCodeMapping
 	{
 		static ConcurrentDictionary<string, List<MemberMapping>> codeMappings = new ConcurrentDictionary<string, List<MemberMapping>>();