Portable unit tests are difficult because as portable libraries they can't truly be built in a runnable fashion.  Instead they need a deployment project to provide a runtime on which to delpoy the output of the build.  To support running our portable tests on both desktop and CoreClr the build is structured as follows:

- Portable tests build w/o deploy to a Dll directory
- Desktop delpoyment references all portable tests and outputs to UnitTests\Desktop\Portable
- CoreClr deployment references all portable tests and outputs to CoreClrTests

This breaks F5 for the moment but gives us the flexibility to restore later.

fixing dotnet package dependencies

Do not offer to use an explicit type for 'var' when it's an anonymous type

Fixes #14635

Support a real progress bar in the new stream FindRefs window.

Don't include VB attributes in the span of a block. We don't want to see those attributes in the indent guide tooltips.

Fixes #14985

Shave off hundreds of MB of allocations during FindReferences.

Fixes #14946

Fix sighelp crash in linked files

Cache delegates to prevent allocations.
Fixes #15052

Ensure that we set the OptimizationDataFile path after importing the core targets, which sets $(TargetName) that is used by this property.

Use out-var in a few more cases.

Don't offer Use-Throw-Expression if teh variable being checked is accessed before it is assigned.
Fixes #15018

Don't fade code out when suggesting the 'Qualify with 'this.'' lightbulb
Fixes #10223

Do not offer use-object intiializer on code that references the variable being initialized.
Fixes #14988

Fix crash in 'use out-var'
Fixes #14982

Bugfix: possible NRE in TypeNameSerializer extensions

Don't include attributes in the span of a block.  We don't want to see those attributes in the indent guide tooltips.