Tooling: Directives are not inheriteted via _GlobalImport.cshtml

[NTaylorMullen]

Due to the change here: cfd5630 directives are no longer inherited in the tooling scenario because we short-circuit for rooted paths (tooling passes in rooted paths) in the ViewStartUtility, now ViewHierarchyUtility.

This seems to have regressed at the beginning of December.

[dougbu]

how are our tests passing? or what part of the scenario is missing from our test suites?

[NTaylorMullen]

Tooling provides a rooted path for the source file where runtime provides an app relative path.

[dougbu]

OIC we were simply not testing the "design-time" scenarios correctly

[NTaylorMullen]

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