The Blazor test infrastructure made a copy of the code in Razor and then
added some more features. This change backports the features needed for
the style of test we're using in Blazor.
I updated the MVC integration tests to use the new style, but I think
there's limited value in trying to rev all of the old tests.
One feature in particular that I removed from the old infrastructure was
the automatic inference of imports based on the file system. This
feature was wierd and doesn't parallel how these features work in
actuality. It's easy and more natural to test imports in new style
tests.
* Add metadata to Razor
This PR introduces standard metadata to Razor. This change begins to
formalize the contract between generated code produced by Razor and
runtimes that want to load and interact with this code.
This is a step on making MVC a 'plugin' to Razor rather than the only
possible implementation. Since we're doing MSBuild work - this is the
right time to designate the current interaction between Razor and MVC as
'legacy' and move forward.
Additionally, we need the source thumbprinting to make re-compilation of
Razor a thing.
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Also I noticed that our source document doesn't expose the hash
algorithm by name. We really should have this, so I added it and
hardened the code that deals with checksums in c# generation.
- Split line mapping validation into its own method.
- Prior to this we were calling the wrong method in our design time code generation integration tests within the Razor.Extensions test project.
- Re-generated line mapping baselines to conform with the cshtml files for Razor.extensions code generation integration tests.
#1351