feat: initial feature-flagged, new autocompleter. Now lazy loaded on first use MONGOSH-2036 (#2462)

* Reapply "feat: initial feature-flagged, new autocompleter MONGOSH-2036" (#2461)

This reverts commit 0387cea.

* lazy-load the new autocompleter code on first use

* fix tests for new autocomplete

* leave api-export alone

* use the same function that would fail if used to know if we support getting the active connection

* remove the check from here, we'll add it to mongodb-ts-autocomplete

* use the latest mongodb-ts-autocomplete

* mongodb-ts-autocomplete also lives outside of the snapshot

Author: lerouxb

package-lock.json

@@ -29,6 +29,7 @@ export interface InterpreterEnvironment {
  */
 export class OpenContextRuntime implements Runtime {
   private interpreterEnvironment: InterpreterEnvironment;
+  // TODO(MONGOSH-2205): we have to also port this to the new autocomplete
   private autocompleter: ShellApiAutocompleter | null = null;
   private shellEvaluator: ShellEvaluator;
   private instanceState: ShellInstanceState;

packages/browser-runtime-core/src/open-context-runtime.ts

@@ -77,6 +77,7 @@
     "@mongosh/shell-evaluator": "^3.11.0",
     "@mongosh/snippet-manager": "^3.11.0",
     "@mongosh/types": "3.6.2",
+    "@mongodb-js/mongodb-ts-autocomplete": "^0.2.4",
     "@segment/analytics-node": "^1.3.0",
     "ansi-escape-sequences": "^5.1.2",
     "askcharacter": "^2.0.4",