[Bug] Document symbols are not working

[kisstkondoros]

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.37.1#XQAAAAL5BQAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscw93royzX2TCsdnO2pIhMCTyfRj--wy5DSlIBUX1GqvAaH8JMatJ3oD6eBcMyQf91t6mXAweMogaPgJwsffilU1dSzKzoGincsXXP8TgE9xQqMLiP4QMapT-8geCdu5si58VXalSecX8eHXM-lbhd94n-sGFbLjeLHSMzwn9Nfg6J8DReh0i1jgUW4xRwDev3anRRtDEQASFGPjr_YK9VwErECp890vKo07SqL4sSwLYYPRcCcP3SpaSG8EkB6KS2JM89MGjRI85SCXeWB8BJQCyGEgGrAbU6HnpJRn7JRuQmyJVHOzN-15IRP7XPwwrpwdVS7G25Gxuz9r44vFYKU2KL5zhwSM7qNqOeN6SJNVNzI0R8BeyNemNOoM-vNSdYk1kcSfG47mTwrqD27DEdRgvld1SPeugn75SnfzadpHKM3jMAOXJL_NitafdWHCrDc_QqfYHzdeSoByaLmUnKYU3e2TE_Nc35b5Gbdl55QnBYck7-W9RdVZWxh7PbUKaA6wxKic2BVE8BEir6xIFD5DMaX2H_6_q-rLVp-an7D_Ov02JnAQeQviGcKZmjZzAGqYH3JILD63VGg4R-c4MIvgYvXAO-wEz6vx11t6GmnmPjgdJtgn3_Y1yBUX_SQ6tY0uT58m6yEGuGhntf-5M3iBgqidsm_Om_kI59F3QNgUzwmDgvEti81yZC9uPF2Midda9N6JJrA2RM1_jAqqVR9ZmTpX5CNIMA5xODlhkQ8Og_-6r8sHCzXH2WQlQQpIn0QhvcVRu1aavGeACBVpCD2FBUAIbjj4Slu0DQ2Dm5vRGbn_yXymg0DTogGhZxPZsT_CQ4F4dJr2Qd-lZSbC6okIBxOHvB48ek7lhCr_uMNE7ycKX_q6K8QBM-Ym02CJtbrolKJVTtVb_wNz8ijgi-YOmbFboE1z6jd1BP7QGhq3BEqfhlkQyHJwQvgwcmsrw3hibpM4KQa4yT9j6WmFxJa315xhiHork6A5rfwxaF0_VVlLQ

Monaco Editor Playground Code

No response

Reproduction Steps

Create the editor with the following options:

{
    language: "typescript",
    stickyScroll: {
        enabled: true,
        maxLineCount: 3,
    },
}

An exception is immediately thrown due to invalid object access in

monaco-editor/src/language/typescript/languageFeatures.ts

Line 893 in 1c6f48a

children: item.childItems?.map((child) => convert(child, result.name)),

Actual (Problematic) Behavior

No document symbols are available and (at least) the sticky scroll is not working

Expected Behavior

Document symbols are available and the sticky scroll is working

Additional Context

No response

[hediet]

Thanks a lot for reporting this bug and providing the PR!