Document baseline update and allow tests to run in debug mode without assert (#8149)

* document baseline update and allow tests to run in debug mode without assert

* Update DEVGUIDE.md

* Update DEVGUIDE.md

* Update readme.md

Author: dsyme

src/fsharp/IlxGen.fs

@@ -5089,7 +5089,6 @@ and GenDecisionTreeSwitch cenv cgbuf inplabOpt stackAtTargets eenv e cases defau
             | _ -> error(InternalError("these matches should never be needed", switchm))
 
 and GenDecisionTreeCases cenv cgbuf stackAtTargets eenv defaultTargetOpt targets repeatSP targetInfos sequel caseLabels cases (contf: Zmap<_,_> -> FakeUnit) =
-    assert(cgbuf.GetCurrentStack() = stackAtTargets) // cgbuf stack should be unchanged over tests. [bug://1750].
 
     match defaultTargetOpt with
     | Some defaultTarget ->