Fix #2033: Wrong place for variable declaration.

ICSharpCode.Decompiler/CSharp/StatementBuilder.cs

@@ -599,6 +599,7 @@ Statement TransformToForeach(UsingInstruction inst, Expression resource)
 			// Add the variable annotation for highlighting (TokenTextWriter expects it directly on the ForeachStatement).
 			foreachStmt.AddAnnotation(new ILVariableResolveResult(foreachVariable, foreachVariable.Type));
 			foreachStmt.AddAnnotation(new ForeachAnnotation(inst.ResourceExpression, conditionInst, singleGetter));
+			foreachStmt.CopyAnnotationsFrom(whileLoop);
 			// If there was an optional return statement, return it as well.
 			if (optionalReturnAfterLoop != null) {
 				return new BlockStatement {