Choosing dev15.5.x as the base instead.

Choosing dev15.5.x as the base instead.

Locate implementations for reference assemblies using the GAC

Update optimization data to 2.7.0-beta3-62526-01...

Fix command line build error

* Check fully-qualified names for SuppressIldasmAttribute and ReferenceAssemblyAttribute
* Use correct reference location, or fail decompilation if it's not available

Fix and re-enable test that would catch this error

CheckPresenceOfTypeIdentifierAttribute - avoid requesting syntax trees if we know that we already decoded all well-known attributes. (#24576)

Fixes https://devdiv.visualstudio.com/DevDiv/_workitems?id=537870.

Remove the use of Parallel.ForEach in ClsComplianceChecker

Fix problems associated with analyzer timing

PreviewCodeAction was overriding ComputeOperations but returning a post-processed operation from original action. This results in another PostProcess being called on the codeaction. If postprocess was overriden in originalaction that'll be ignored the second time (#23920)

Fixes #23459

Fix up some NuGet private package definitions

Disable navigate to decompiled sources for assemblies with SuppressIldasmAttribute

Allow resolving mscorlib with different assembly version numbers

made VS not crash on invalid dll reference (BadImageFormatException). especially for find all reference cache generation (#24452)

Move shipped public APIs to PublicAPI.Shipped.txt

When adding the reference to System.IO.Pipes.AccessControl for the
compiler server to use on CoreCLR, I unified the pathway for the desktop
and CoreCLR server access control code. This means that
System.IO.Pipes.AccessControl needed to be added as a dependent DLL for
desktop too, but I forgot to do that. This change adds
System.IO.Pipes.AccessControl as a dependent DLL in all the places where
the build task is deployed.

Revert "moved waiter from diagnostics.dll to features.dll"

This reverts commit 823d9730.

Add UseCultureAttribute to help with culture-dependent unit tests

Disable NuGet package restore in Visual Studio for Roslyn.sln