Revert the PRs that made `DBNull.Value` and `NullString.Value` treated as `$null` - #11584

Merged

Aditya Patwardhan (adityapatwardhan) merged 5 commits into

PowerShell:release/v7.0.0-rc.2from

daxian-dbw:revert

Jan 15, 2020

Commits on Jan 14, 2020

Revert "Use more effective evaluation order in LanguagePrimitives.IsNullLike() (#10781)"
Dongbo Wang (daxian-dbw)
committed
e035a28
Revert "Consider `DBNull.Value` and `NullString.Value` the same as `$null` when comparing with `$null` and casting to bool (#9794)"
Dongbo Wang (daxian-dbw)
committed
21a8a3f
Update Coalescing and Null-conditional operators to use 'IsNull' instead
Dongbo Wang (daxian-dbw)
committed
ce64abb

Commits on Jan 15, 2020

Fix 2 test failures
Dongbo Wang (daxian-dbw)
committed
9923f3b
Fix the spelling issue in 'preview.md'
Dongbo Wang (daxian-dbw)
committed
8c8cb32