Consolidation of all Windows PowerShell work ported to PSCore6
* Added ps1 file import restriction. Refactored InvokeLanguageModeTestingSupportCmdlet to HelpersSecurity module
* JEA loop back fix. Debugger running commands in CL mode.
* Support for new AMSI codes. Changed to use AMSI buffer API. Unhandled exception fix.
* Fixes for module bugs while running in ConstrainedLanguage mode
* Untrusted input tracking work
* Configuration keyword bug fix, PSRP protocol version check for reconstruct reconnect, Sharing InitialSessionState in runspace pool.
* Restricted remote session in UMCI, Applocker detection collision, Help command exposing functions, Null reference exception fix.
* Added mitigation for debugger function exposure
[Breaking Change]
When a binary module has the module assembly in GAC, we load the assembly from GAC before trying to load it from module base path.
This change attempts to load it from module base path before looking up in GAC.
[Breaking Change]
There is specific code that sets the `OutputFormat` to xml if pwsh is run non-interactive, with redirected output, and the command was encoded. However, it ignored whether OutputFormat was specified. Fix is to track whether `-OutputFormat` was used and respect that value rather than defaulting to xml.
Fix https://github.com/PowerShell/PowerShell/issues/5912
* Simplify main loop in ReadDelimited() by bringing out raw stream code
* Remove unused constructor
* Allocate buffer for current line once in constructor
* Use Span buffer to significantly reduce allocations
* Optimize Boyer-Moore. Use simple mapping Unicode chars to byte. It works well for common text files with chars from one-two languages.
Add new parameters in Get-Culture cmdlet:
-Name - to allow retrieving a specific culture
-NoUserOverrides - ignore user changes for current culture
-ListAvalable - to allow retrieving all cultures supported on the platform
- Add new Offset and Count parameters.
- Modify ByteCollection class to support offsets up to UInt64.MaxValue size.
- Hide/obsolete Raw parameter because the behavior is by default.
- Optimize conversion to bytes to reduce allocations for large input data.
By not tracking context in the common case where Context size is 0 (using new NoContextTracker class), and by not checking if the full name of a FileInfo is a Directory, about 30% of the execution time is cut when piping files into Select-String.
The root cause is that `OutputBuffer` is not cleaned up (set to `null`) in `Stop` and `BeginStop/EndStop` when the powershell instance owns the `OutputBuffer` object. Since the pipeline has been intentionally stopped by the caller, the `OutputBuffer` should be set to `null` as well when it's owned by the PowerShell instance, just like how it's cleaned up in `EndInvoke`.
Aditya Patwardhan