Fix #2733: Ignore bad metadata when trying to resolve ResolutionScope

ICSharpCode.Decompiler/SRMExtensions.cs

@@ -239,6 +239,8 @@ namespace ICSharpCode.Decompiler
 			if (handle.IsNil)
 				return false;
 			StringHandle nameHandle, namespaceHandle;
+			try
+			{
 				switch (handle.Kind)
 				{
 					case HandleKind.TypeReference:
@@ -263,6 +265,12 @@ namespace ICSharpCode.Decompiler
 					default:
 						return false;
 				}
+			}
+			catch (BadImageFormatException)
+			{
+				// ignore bad metadata when trying to resolve ResolutionScope et al.
+				return false;
+			}
 			if (knownType.TypeParameterCount == 0)
 			{
 				if (!reader.StringComparer.Equals(nameHandle, knownType.Name))