shim more Windows functions

Author: RalfJung

src/fn_call.rs

@@ -739,6 +739,14 @@ impl<'a, 'mir, 'tcx: 'mir + 'a> EvalContextExt<'tcx> for EvalContext<'a, 'mir, '
                 // any non zero value works for the stdlib. This is just used for stackoverflows anyway
                 self.write_scalar(dest, Scalar::from_u128(1), usize)?;
             },
+            "std::sys::windows::c::::GetModuleHandleW" |
+            "std::sys::windows::c::::GetProcAddress" |
+            "std::sys::windows::c::::SetLastError" |
+            "std::sys::windows::c::::GetLastError" => {
+                let usize = self.tcx.types.usize;
+                // pretend these do not exist/nothing happened, by returning zero
+                self.write_scalar(dest, Scalar::from_u128(0), usize)?;
+            },
             _ => return err!(NoMirFor(path)),
         }