Revert "Merge pull requestdotnet#71412 from vibeeshan025/main

…-release/dev17.10Merge release/dev17.9 to release/dev17.10

…-release/dev17.10Merge release/dev17.9 to release/dev17.10

…o-mainMerge release/dev17.10 to main

…o-mainMerge release/dev17.10 to main

Provide overloads to avoid unnecessary boxing

Disable autoBraceSurround on 17.9 P2 tests

…Creator.cs

…Creator.cs

…oslyn into keepProjectCone

…oftJsonVersionFix NewtonsoftJsonVersion problem

* Build bootstrap compiler in separate phaseThis moves the infrastructure for building a bootstrap compiler into aseparate phase.The reason for this is to facilitate better performance investigations.Having the bootstrap compiler build inside our build makes it basicallyimpossible to profile using a freshly built compiler to build our repo.Having separate phases mean that locally I can now- build the bootstrap compiler- start the profiler- rebuild roslynOverall I think it's also just a bit cleaner this way.* yml* yml* cleanup* fixes* more* bootstrap change* yml* more* more

Break out the IsFrozen flag to be an aspect of CompilationTrackerState.

…ionCrash

Fix crash with convert to record