Respect <NoWarn> in .csproj

[anfomin]

Environment data

dotnet --info output:

.NET Command Line Tools (1.0.1)

Product Information:
 Version:            1.0.1
 Commit SHA-1 hash:  005db40cd1

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.12
 OS Platform: Darwin
 RID:         osx.10.11-x64
 Base Path:   /usr/local/share/dotnet/sdk/1.0.1

VS Code version: 1.11.2
C# Extension version: 1.9.0-beta3

Steps to reproduce

Create project with single class. In .csproj add line:

<NoWarn>$(NoWarn);CS1591;CS1573</NoWarn>

Expected behavior

There should be no warnings in "Problems" output.

Actual behavior

[anfomin]

This issue was fixed for project.json (OmniSharp/omnisharp-roslyn#734), but new .csproj still does not respect nowarn.

[DustinCampbell]

OmniSharp does support NoWarn for csproj, it's just a little finicky about it. Don't include the "CS" -- just the raw numbers.

<NoWarn>$(NoWarn);1591;1573</NoWarn>

I've filed OmniSharp/omnisharp-roslyn#826 to improve the support here. Thanks!

[anfomin]

@DustinCampbell thank you! It works!