Add System.Xml ref assembly (#12017)

* Add System.Xml.Schema and initial Core types in System.Xml.RW contract

* Change XmlException to inherit from SystemException instead of Exception

* Add System.Xml.Xsl in System.Xml.RW contract

* Update System.Xml.XmlDocument and System.Xml.XmlSerializer

* Update System.Xml.XPath and System.Xml.Serialization

* Add remaining types in System.Xml.RW and remove System.Xml.Xsl.Runtime namespace (not supposed to be in netstandard2.0)

* Update System.Xml.XDocument and System.Private.Xml.Linq

* Fix Schema and Xslt test builds

* Replace csproj references with pkgproj in Xml test projects

* Update dependencies

* Fix TestTFM default conditions bug in dir.props

* Fix merge conflict leftover

* Fix build and Remove unused workaround files

* Revert dir.props changes

* Address feedback

* Make final changes for Xml surface area to match that of netstandard2.0

* Add few comments and add P2P references for System.Net.Requests temporarily

2 files changed, 7 insertions, 5 deletions

diff --git a/src/System.Private.Xml/tests/Xslt/XsltCompiler/XsltCompiler.Tests.csproj b/src/System.Private.Xml/tests/Xslt/XsltCompiler/XsltCompiler.Tests.csproj
index 618afe6cdc..75205c4f14 100644
--- a/src/System.Private.Xml/tests/Xslt/XsltCompiler/XsltCompiler.Tests.csproj
+++ b/src/System.Private.Xml/tests/Xslt/XsltCompiler/XsltCompiler.Tests.csproj
@@ -8,7 +8,7 @@
     <OutputType>Library</OutputType>
     <AssemblyName>XsltCompiler.Tests</AssemblyName>
     <RootNamespace>System.Xml.Tests</RootNamespace>
-    <NuGetTargetMoniker>.NETStandard,Version=v1.5</NuGetTargetMoniker>
+    <NuGetTargetMoniker>.NETStandard,Version=v1.7</NuGetTargetMoniker>
   </PropertyGroup>
   <!-- Default configurations to help VS understand the configurations -->
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
@@ -43,8 +43,7 @@
     <ProjectReference Include="$(CommonTestPath)\System\Xml\ModuleCore\ModuleCore.csproj" />
     <ProjectReference Include="$(CommonTestPath)\System\Xml\XmlCoreTest\XmlCoreTest.csproj" />
     <ProjectReference Include="$(CommonTestPath)\System\Xml\xmlDiff\XmlDiff.csproj" />
-    <ProjectReference Include="..\..\..\src\System.Private.Xml.csproj" />
-    <ProjectReference Include="..\..\..\..\System.Xml.ReaderWriter\src\System.Xml.ReaderWriter.csproj" />
+    <ProjectReference Include="..\..\..\..\System.Xml.ReaderWriter\pkg\System.Xml.ReaderWriter.pkgproj" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="Identity.xslt" />
diff --git a/src/System.Private.Xml/tests/Xslt/XsltCompiler/project.json b/src/System.Private.Xml/tests/Xslt/XsltCompiler/project.json
index c796d61d2c..519e3b11b5 100644
--- a/src/System.Private.Xml/tests/Xslt/XsltCompiler/project.json
+++ b/src/System.Private.Xml/tests/Xslt/XsltCompiler/project.json
@@ -4,6 +4,7 @@
     "System.Collections.NonGeneric": "4.3.0-beta-24522-03",
     "System.Collections.Specialized": "4.3.0-beta-24522-03",
     "System.Diagnostics.Process": "4.3.0-beta-24522-03",
+    "System.Globalization": "4.3.0-beta-24522-03",
     "System.IO": "4.3.0-beta-24522-03",
     "System.IO.FileSystem": "4.3.0-beta-24522-03",
     "System.IO.FileSystem.Primitives": "4.3.0-beta-24522-03",
@@ -11,9 +12,11 @@
     "System.Linq.Expressions": "4.3.0-beta-24522-03",
     "System.ObjectModel": "4.3.0-beta-24522-03",
     "System.Resources.Reader": "4.3.0-beta-24522-03",
+    "System.Reflection": "4.3.0-beta-24522-03",
     "System.Runtime": "4.3.0-beta-24522-03",
     "System.Runtime.Extensions": "4.3.0-beta-24522-03",
     "System.Runtime.Loader": "4.3.0-beta-24522-03",
+    "System.Text.Encoding": "4.3.0-beta-24522-03",
     "System.Threading": "4.3.0-beta-24522-03",
     "System.Threading.Thread": "4.3.0-beta-24522-03",
     "System.Threading.Tasks": "4.3.0-beta-24522-03",
@@ -25,9 +28,9 @@
     "Microsoft.DotNet.BuildTools.TestSuite": "1.0.0-prerelease-00807-03"
   },
   "frameworks": {
-    "netstandard1.5": {}
+    "netstandard1.7": {}
   },
   "supports": {
-    "coreFx.Test.netcoreapp1.0": {}
+    "coreFx.Test.netcoreapp1.1": {}
   }
 }