add property bag to diagnostic and remember origin of the diagnostic

Fix CompileAndVerifyOnWin8Only test utility

Implement VB Code Model's AddAttribute method for several declaration kinds

Preprocessor symbols in VB need to be combined with a comma, not a
semicolon.

The primary use of DefineConstants should be to append constant values,
not replace them.  Any time a replacement operation is used it prevents
us from establishing defines in our targets and pushing them down to all
affected projects.

Improve SyntaxDiffer diffing rules

Include DefaultContentType in InteractiveCommand metadata

Partial fix for #409: Update StartsWith invocations to use appropriate StringComparison

fix a bug where we gave wrong value for length in tagger

Fixes Grammar in SourceTextContainer exception message

Fixes #581

Conversion operators were missed by C# Code Model when the FunctionKind
property is accessed. This is no longer the case.

Add a Gitter chat badge to README.md

Implement AddAttribute so that it works for Declare functions/subs,
auto-properties, simple and custom events, and MustOverfide
functions/subs. This fixes Issue #596.

Don't format inside NonUser code

[Perf] Add Debugger Stepping testcase

This file was accidentally deleted in my earlier change, but without it
the Roslyn packages may refuse to load at startup.

Fix #449 : Dont format while typing inside NonUser code

Automated checkin: update Concord binaries from \\cpvsbuild\drops\dev14\VSPro_1\raw\22616.00 to version 22617.00.

Conflicts:
	src/Features/Core/Diagnostics/EngineV1/DiagnosticIncrementalAnalyzer.cs

this is reported by editor team where we returning wrong tags for given span. it looks like we gave end position as length. this is a second time we did this mistake. probably because this code was based on the code that had this issue originally.

to prevent this from happening again, I added assert in base tagger class.

* this is hard to do in unit test since each unit test tests one specific tagger. if we forgot to add unit test to tests this specific issue for new tagger added, it will go unnoticed again.

Remove commented out class

PERF: Use Binarysearch extension method

In relation to #516 modified three occurrences of Array.BinarySearch over integer arrays with our custom extension method.

Skip failing analyzer driver tests.