fix(shell-api): include db name in collection print MONGOSH-927 (#1044)

Author: addaleax

packages/java-shell/src/test/resources/collection/ref.expected.txt

@@ -1 +1 @@
-collection
+admin.collection

packages/java-shell/src/test/resources/db/getCollection.expected.txt

@@ -1 +1 @@
-StringResult: does not exist
+StringResult: test.does not exist

packages/shell-api/src/collection.spec.ts

@@ -58,7 +58,7 @@ describe('Collection', () => {
       const coll = new Collection(mongo as any, db, 'myCollection');
       it('toShellResult', async() => {
         expect((await toShellResult(coll)).type).to.equal('Collection');
-        expect((await toShellResult(coll)).printable).to.equal('myCollection');
+        expect((await toShellResult(coll)).printable).to.equal('myDB.myCollection');
       });
     });
   });

packages/shell-api/src/collection.ts

@@ -119,7 +119,7 @@ export default class Collection extends ShellApiWithMongoClass {
    * Internal method to determine what is printed for this class.
    */
   [asPrintable](): string {
-    return this._name;
+    return `${this._database.getName()}.${this._name}`;
   }
 
   /**