enable goto/symbols cache for unsaved editors

Author: aviatesk

lib/runtime/goto.js

@@ -85,7 +85,7 @@ class Goto {
 
     gotoSymbol({
       word,
-      path: editor.getPath(),
+      path: editor.getPath() || 'untitled-' + editor.getBuffer().getId(),
       // local context
       column: column + 1,
       row: row + 1,
@@ -142,7 +142,7 @@ class Goto {
       return new Promise((resolve, reject) => {
         gotoSymbol({
           word,
-          path: textEditor.getPath(),
+          path: textEditor.getPath() || 'untitled-' + textEditor.getBuffer().getId(),
           // local context
           column: column + 1,
           row: row + 1,

lib/runtime/outline.js

@@ -79,7 +79,7 @@ function updateEditor (editor, options = {
   const text = editor.getText()
   const currentModule = modules.current()
   const mod = currentModule ? currentModule : 'Main'
-  const path = editor.getPath()
+  const path = editor.getPath() || 'untitled-' + editor.getBuffer().getId()
   return updateeditor({
     text,
     mod,