I'm using Resharper Ultimate 2020.1.4 - Build 201.0.20200702.125931 with VS 2010 Version 16.7.0 Preview 5.0.
Within a XAML declaration for a Window, I have:
<Window.InputBindings><KeyBinding Command="Close" Key="Esc"/></Window.InputBindings>
Inspection Results shows an Error: Cannot resolve symbol 'Esc'.
There are no errors of any kind shown in VS 2019's Error List, with or without suspending R#. There are no compilation errors.