build fix, lint, remove some instanceof checks

src/Locations/Locations.ts

@@ -21,7 +21,7 @@ function constructLocation(p: IConstructorParams): Location {
     throw new Error(`Invalid constructor parameters for Location. No 'name' property`);
   }
 
-  if (Locations[p.name] instanceof Location) {
+  if (Locations[p.name]) {
     console.warn(`Property with name ${p.name} already exists and is being overwritten`);
   }
 

src/Locations/ui/CompanyLocation.tsx

@@ -15,7 +15,6 @@ import { Locations } from "../Locations";
 import { LocationName } from "../data/LocationNames";
 
 import { Companies } from "../../Company/Companies";
-import { CompanyPosition } from "../../Company/CompanyPosition";
 import { CompanyPositions } from "../../Company/CompanyPositions";
 import * as posNames from "../../Company/data/companypositionnames";
 
@@ -174,7 +173,7 @@ export function CompanyLocation(props: IProps): React.ReactElement {
     }
 
     const pos = companyPosition;
-    if (pos instanceof CompanyPosition) {
+    if (pos) {
       Player.startWork(
         new CompanyWork({
           singularity: false,