Fix bugs in Find References implementation

Author: daviwil

src/PowerShellEditorServices/Language/FindReferencesVisitor.cs

@@ -59,6 +59,7 @@ public override AstVisitAction VisitFunctionDefinition(FunctionDefinitionAst fun
             {
                 Text = functionDefinitionAst.Name,
                 StartLineNumber = functionDefinitionAst.Extent.StartLineNumber,
+                EndLineNumber = functionDefinitionAst.Extent.StartLineNumber,
                 StartColumnNumber = startColumnNumber,
                 EndColumnNumber = startColumnNumber + functionDefinitionAst.Name.Length
             };

src/PowerShellEditorServices/Language/FindSymbolVisitor.cs

@@ -62,6 +62,7 @@ public override AstVisitAction VisitFunctionDefinition(FunctionDefinitionAst fun
             {
                 Text = functionDefinitionAst.Name,
                 StartLineNumber = functionDefinitionAst.Extent.StartLineNumber,
+                EndLineNumber = functionDefinitionAst.Extent.EndLineNumber,
                 StartColumnNumber = startColumnNumber,
                 EndColumnNumber = startColumnNumber + functionDefinitionAst.Name.Length
             };

src/PowerShellEditorServices/Session/Workspace.cs

@@ -149,9 +149,9 @@ private void RecursivelyFindReferences(
                     if (!TryGetFile(resolvedScriptPath, out newFile))
                     {
                         newFile = OpenFile(resolvedScriptPath);
-                        referencedScriptFiles.Add(resolvedScriptPath, newFile);
                     }
 
+                    referencedScriptFiles.Add(resolvedScriptPath, newFile);
                     RecursivelyFindReferences(newFile, referencedScriptFiles);
                 }
             }