Merge pull request #5526 from OmniSharp/dibarbet-patch-1

Include platforms to validate in test plan

Author: dibarbet

test-plan.md

@@ -8,6 +8,11 @@
 
 See [OmniSharp Options](https://github.com/OmniSharp/omnisharp-vscode/blob/master/test-plan.md#omnisharpusemodernnet-all-platforms) for more details.
 
+### Validation
+
+#### Platforms
+All the validations below should be performed on both Windows and at least one Unix platform (MacOS, Linux).  These can be done on x64 versions unless there are ARM specific changes to validate.
+
 #### Opening projects
 When you open a directory in VS Code, the C# extension should look for a .csproj, .sln, or .slnf file in that directory and use "OmniSharp" to load it. If a .cs file is present and no .csproj, .sln, or .slnf file are present, Omnisharp should start but the intellisense should only appear when a change is made to the file.
 If you look in "Output > Omnisharp Log" a bunch of information should be printed about what copy of MSBuild was used and what projects were load