(GH-879) Do not normalise paths from EnumeratePSFiles

Previously the paths emitted by `EnumeratePSFiles` were normalised to use the
directory path separator appropriate for the platform.  In particular on Windows
the paths emitted by the Microsoft.Extensions.FileSystemGlobbing library
contained both forward and backward slashes.  However on inspection this is not
required as all the paths are converted to URIs when communicating over LSP, so
the normalisation is no longer required.

This commit removes the normalisation and updates the tests to reflect the new
paths.

Author: glennsarti

Diff for: src/PowerShellEditorServices/Workspace/Workspace.cs

@@ -357,7 +357,7 @@ bool ignoreReparsePoints
             var fileMatchResult = matcher.Execute(fsFactory.RootDirectory);
             foreach (FilePatternMatch item in fileMatchResult.Files)
             {
-                yield return Path.Combine(WorkspacePath, item.Path.Replace('/', Path.DirectorySeparatorChar));
+                yield return Path.Combine(WorkspacePath, item.Path);
             }
         }
 

Diff for: test/PowerShellEditorServices.Test/Session/WorkspaceTests.cs

@@ -100,18 +100,18 @@ public void CanRecurseDirectoryTree()
                 // suggest it should be find the '.ps1xml' files because we search for the pattern '*.ps1'
                 // ref https://docs.microsoft.com/en-us/dotnet/api/system.io.directory.getfiles?view=netcore-2.1#System_IO_Directory_GetFiles_System_String_System_String_System_IO_EnumerationOptions_
                 Assert.Equal(4, fileList.Count);
-                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested", "donotfind.ps1"), fileList[0]);
-                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested", "nestedmodule.psd1"), fileList[1]);
-                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested", "nestedmodule.psm1"), fileList[2]);
+                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested") + "/donotfind.ps1", fileList[0]);
+                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested") + "/nestedmodule.psd1", fileList[1]);
+                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested") + "/nestedmodule.psm1", fileList[2]);
                 Assert.Equal(Path.Combine(workspace.WorkspacePath,"rootfile.ps1"), fileList[3]);
             }
             else
             {
                 Assert.Equal(5, fileList.Count);
-                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested", "donotfind.ps1"), fileList[0]);
-                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested", "nestedmodule.psd1"), fileList[1]);
-                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested", "nestedmodule.psm1"), fileList[2]);
-                Assert.Equal(Path.Combine(workspace.WorkspacePath,"other", "other.ps1xml"), fileList[3]);
+                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested") + "/donotfind.ps1", fileList[0]);
+                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested") + "/nestedmodule.psd1", fileList[1]);
+                Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested") + "/nestedmodule.psm1", fileList[2]);
+                Assert.Equal(Path.Combine(workspace.WorkspacePath,"other") + "/other.ps1xml", fileList[3]);
                 Assert.Equal(Path.Combine(workspace.WorkspacePath,"rootfile.ps1"), fileList[4]);
             }
         }
@@ -147,7 +147,7 @@ public void CanRecurseDirectoryTreeWithGlobs()
             );
 
             Assert.Equal(2, fileList.Count);
-            Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested", "nestedmodule.psd1"), fileList[0]);
+            Assert.Equal(Path.Combine(workspace.WorkspacePath,"nested") + "/nestedmodule.psd1", fileList[0]);
             Assert.Equal(Path.Combine(workspace.WorkspacePath,"rootfile.ps1"), fileList[1]);
         }