Not as such; inputs are inputs.
One approach to allow for easier simulation can be to consider inputs not as high or low but as active as not, asserted or not, and coding appropriately for the condition rather than a level -
If pinC.1 = ACTIVE Then ...
If pinC.1 <> ACTIVE Then ...
You can then define ACTIVE via a SYMBOL definition to be 1 when simulated even if that would be 0 for the physical hardware.