#993: Move empty body special case to ILAst.

ICSharpCode.Decompiler/CSharp/CSharpDecompiler.cs

@@ -738,15 +738,6 @@ namespace ICSharpCode.Decompiler.CSharp
 		void DecompileBody(MethodDefinition methodDefinition, IMethod method, EntityDeclaration entityDecl, ITypeResolveContext decompilationContext)
 		{
 			try {
-				// Special case: code size is 0
-				// This might be a reference assembly:
-				if (methodDefinition.Body.CodeSize == 0) {
-					var dummy = new BlockStatement();
-					dummy.InsertChildAfter(null, new EmptyStatement(), BlockStatement.StatementRole);
-					dummy.InsertChildAfter(null, new Comment(" Empty body found. Decompiled assembly might be a reference assembly."), Roles.Comment);
-					entityDecl.AddChild(dummy, Roles.Body);
-					return;
-				}
 				var specializingTypeSystem = typeSystem.GetSpecializingTypeSystem(decompilationContext);
 				var ilReader = new ILReader(specializingTypeSystem);
 				ilReader.UseDebugSymbols = settings.UseDebugSymbols;

ICSharpCode.Decompiler/IL/BlockBuilder.cs

@@ -113,6 +113,14 @@ namespace ICSharpCode.Decompiler.IL
 			CreateContainerStructure();
 			mainContainer.ILRange = new Interval(0, body.CodeSize);
 			currentContainer = mainContainer;
+			if (instructions.Count == 0) {
+				currentContainer.Blocks.Add(new Block {
+					Instructions = {
+						new InvalidBranch("Empty body found. Decompiled assembly might be a reference assembly.")
+					}
+				});
+				return;
+			}
 
 			foreach (var inst in instructions) {
 				cancellationToken.ThrowIfCancellationRequested();