Fixes #3518

When trying to figure out which Argument of an ArgumentList was being
inferred, we found the index and then returned "(index + 1) \ 2" without
checking if the index was out of bounds. When the index is out of bounds
its value is -1, so the above expression results in an index of 0, and
the rest of the system continues as though we're really trying to infer
the type of the first Argument (but really, the token we've passed is
the close paren for the entire invocation).

Don't trigger "completionlist tag" completion in trivia

Fixes #3518.

Conflicts:
	src/EditorFeatures/VisualBasicTest/Completion/CompletionProviders/CompletionListTagCompletionProviderTests.vb

Shared IntelliSense should treat fields and properties with the same …

Use different ContentType for InteractiveWindowCommands...

Support EnC for string interpolation

- Fix #2556 and internal bug 1198941

Fixing Build/AssemblyVersion during OfficialBuild

Unskip test blocked by #2721.

Allow top-level extension methods in VB script code

I didn't know about PredefinedInteractiveCommandsContentTypes
when I initially added the ContentType attribute to the interactive
commands.  Switching to use the constant defined there (instead of
just "code")...

This fixes the Build/AssemblyVersion to be the same as RoslynSemanticVersion when OfficialBuild is true, but no BuildVersion was passed in.

Move binding redirects for InteractiveWindow...

...to the InteractiveWindow VSIX.  This allows the rest of the Roslyn
components in Roslyn.VisualStudio.Setup to move to version 2.0.0.0 while
leaving "NewVersion" for the InteractiveWindow components at 1.1.0.0.

Fix bug 4090

Renaming Interactive product assemblies...

"Roslyn" -> "Microsoft" or "Microsoft.CodeAnalysis"

We should only do the color color binding check of the expression originally bound as something other than a type or namespace.

Remove namespaces from ScriptOptions.Default

Removed explict references to System.Collections facade

Include content files in Roslyn.VisualStudio.Setup.Interactive.vsix

Opt projects building against portable into the portable flavor.

Specifically, the default response files for initializing the Interactive
windows.

Fixes #4203

The IDE does not consume ScriptOptions.Default so the IDE and the host
were out of sync.  For example, ```typeof(Console)``` would be squiggled
in the Interactive window but would evaluate correctly when submitted.

Fixes #4154

Disable module load assertions in IDE perf tests

This fixes these warnings when Win10 tools are installed due to #4191.

  Unable to add a reference to project 'BasicCodeAnalysis'. The current project does not support references to Portable Library projects.

Created the breaking changes doc

Changing the StartProgram used for Unit Tests

Interactive Workspace dll signing...

My wild guess as to why the Workspaces dlls aren't signed in the Interactive
VSIX is that they're not marked "ForceIncludeInVSIX=true" (as most of the
other references are).

Hide InternalsVisibleToTypeScript items from UI tree

These were causing warnings in IDE due to #4192 and must be
been added by a bad package.

This fixed DevDiv.1158790 — Spurious errors, warnings and messages in IDE from background analysis, which
basically results in a bunch of warnings in the IDE:

     The referenced component 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.5\Profile\Profile7\mscorlib.dll' could not be found.

C#/VB project system do not support conditional references and treat them as always being present. This <Reference was being included for all projects regardless
of the condition, confusing Visual Basic project system. Moved it to _ExplictReference concept which already exists for adding mscorlib (see <_ExplicitReference> in Microsoft.CSharp.CurrentVersionCommon.targets)

Fix issue with missing System.Collections.Immutable.dll...