upgrade code mirror to 5.65.15 and fix modes requiring multiplex or overlay, fixes #4279

libraries/codemirror/addon/lint/eslint.js

@@ -46,7 +46,7 @@
         const errors = new eslint().verify(text, {
             root: true,
             parserOptions: {
-                ecmaVersion: 2022
+                ecmaVersion: "latest"
             },
             extends: ['eslint:recommended', 'airbnb-base'],
             env: {

libraries/codemirror/addon/lint/lint.js

@@ -24,8 +24,10 @@
 
     function position(e) {
       if (!tt.parentNode) return CodeMirror.off(document, "mousemove", position);
-      tt.style.top = Math.max(0, e.clientY - tt.offsetHeight - 5) + "px";
-      tt.style.left = (e.clientX + 5) + "px";
+      var top = Math.max(0, e.clientY - tt.offsetHeight - 5);
+      var left = Math.max(0, Math.min(e.clientX + 5, tt.ownerDocument.defaultView.innerWidth - tt.offsetWidth));
+      tt.style.top = top + "px"
+      tt.style.left = left + "px";
     }
     CodeMirror.on(document, "mousemove", position);
     position(e);
@@ -199,10 +201,6 @@
       var anns = annotations[line];
       if (!anns) continue;
 
-      // filter out duplicate messages
-      var message = [];
-      anns = anns.filter(function(item) { return message.indexOf(item.message) > -1 ? false : message.push(item.message) });
-
       var maxSeverity = null;
       var tipLabel = state.hasGutter && document.createDocumentFragment();
 
@@ -220,9 +218,8 @@
           __annotation: ann
         }));
       }
-      // use original annotations[line] to show multiple messages
       if (state.hasGutter)
-        cm.setGutterMarker(line, GUTTER_ID, makeMarker(cm, tipLabel, maxSeverity, annotations[line].length > 1,
+        cm.setGutterMarker(line, GUTTER_ID, makeMarker(cm, tipLabel, maxSeverity, anns.length > 1,
                                                        options.tooltips));
 
       if (options.highlightLines)