Warnings for resolve of critical dependency when executing `tns test`

[endarova]

• CLI: 6.0-rc
• Cross-platform modules: rc
• Android Runtime: rc
• iOS Runtime: rc
• nativescript-dev-webpack@rc
• Plugin(s): nativescript-unit-test-runner@0.6.4

Steps:

1. tns create MyApp --js
2. tns test init
3. tns migrate , or install rc of all dependencies listed above
4. tns test ios/android

Result: Tests run but there are warning in log:
WARNING in ../node_modules/nativescript-hook/index.js 56:27-51
Critical dependency: the request of a dependency is an expression
@ ../node_modules/nativescript-unit-test-runner/postinstall.js
@ ../node_modules/nativescript-unit-test-runner sync (?<!App_Resources.*).(xml|css|js|(?<!d.)ts|scss)$
@ ./main.ts

WARNING in ../node_modules/nativescript-hook/index.js 64:11-53
Critical dependency: the request of a dependency is an expression
@ ../node_modules/nativescript-unit-test-runner/postinstall.js
@ ../node_modules/nativescript-unit-test-runner sync (?<!App_Resources.*).(xml|css|js|(?<!d.)ts|scss)$
@ ./main.ts