[debug]preliminary debugging code to track failures in Conversion.Uri…

….fromPath with source generators

src/CSharpLanguageServer/Conversions.fs

@@ -18,12 +18,16 @@ module Uri =
 
     let toPath (uri: string) = Uri.UnescapeDataString(Uri(unescape(uri)).LocalPath)
 
+    // TODO: parse this: "Microsoft.CodeAnalysis.Razor.Compiler/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Views_Test_Index_cshtml.g.cs"
     let fromPath (path: string) =
-        let metadataPrefix = "$metadata$/"
-        if path.StartsWith(metadataPrefix) then
-            "csharp:/metadata/" + path.Substring(metadataPrefix.Length)
-        else
-            Uri(path).ToString()
+        try
+            let metadataPrefix = "$metadata$/"
+            if path.StartsWith(metadataPrefix) then
+                "csharp:/metadata/" + path.Substring(metadataPrefix.Length)
+            else
+                Uri(path).ToString()
+        with ex ->
+            raise (Exception (sprintf "failed with: %s; path=%s" (string ex) path))
 
     let toWorkspaceFolder(uri: string): WorkspaceFolder =
         { Uri = uri