looks like my previous refactoring - https://github.com/dotnet/roslyn/commit/b4941197495edfef28698246ff5303c1cfa99ab3#diff-34b1790434d03262ef0e31a49e147b33R36 - removed options

Merge dev15-rc2 into master

Provide an API to get unreferenced assembly identities obects from the diagnostics reported about them.

Make BatchFix code action application deterministic.

Add fixed version of Newtonsoft.Json

Introduce a new, deterministic BatchFix application algorithm. The new algorithm works in the following manner:

When producing code-actions, we keep track of both the code-action and the diagnostic that was used to create it. When we later go and 'apply' the code actions in a single document, we'll process them in diagnostic-location order. Is is as if we took each diagnostic of a document in order, produced the CodeAction for that diagnostic, and then applied that CodeAction.

I also took this opportunity to clean up and parallelize much of this code. We now compute code actions in parallel, and we process all documents in parallel when applying changes. Once all application is done, we can then take all the final results and apply them to the solution.

Move PopulateSwitch over to the 'SyntaxEditorFixAll' approach.

Fixing the name of the integration job in the readme

One of our internal tools can't use the standard version of Newtonsoft.Json.  Need an exception for this package.

Updating things so the open-vsi tests run by default.

Further distinguish the integration tests name to 'windows_debug_vs-integration' and 'windows_release_vs-integration'

Removing diagnostic IDs from previous versions of the VB compiler that are no longer generated by Roslyn.

More build output changes

Use inline variables.

Generate members ordering with ComImport types.

Add new property RefCustomModifiers to IParameterSymbol, IPropertySymbol and IMethodSymbol.

always save changes to unopened documents

Don't attempt to keep members sorted by name.

Expose if an INamedTypeSymbol is a 'ComImport'

Add a public extensibility model for CodeActions to supply images to show in the UI.

Internal APIs are aligned with these public APIs.
VB Symbol Display for ByRef returns is adjusted according to the latest design decision.