add the stub type

Author: peter-leonov

packages/jest-resolve/src/index.ts

@@ -48,6 +48,11 @@ const nodePaths = NODE_PATH
       .map(p => path.resolve(resolvedCwd, p))
   : undefined;
 
+// it's temporary here
+function newPath(path: Config.Path): Config.RPth {
+  return {'@@__tag': 'ResolvedPath', path};
+}
+
 /* eslint-disable-next-line no-redeclare */
 class Resolver {
   private readonly _options: ResolverConfig;

packages/jest-types/src/Config.ts

@@ -12,6 +12,10 @@ import chalk = require('chalk');
 type CoverageProvider = 'babel' | 'v8';
 
 export type Path = string;
+// @@__tag is used to simulate an apaque type, useful during refactoring
+// Keeping RPth of the same length as Path for now, to keep diffs to minimum
+// will rename it later.
+export type RPth = {"@@__tag": "ResolvedPath", path: string};
 
 export type Glob = string;