fix: plug remote symbolication enum to JFR

[kaahos]

What does this PR do?:

Adds FRAME_NATIVE_REMOTE to the JFR FrameType constant pool written by Recording::writeFrameTypes, and raises the entry count from 7 to 8.

Motivation:

Frames that need remote symbolication are tagged FRAME_NATIVE_REMOTE (7), but that value was never written to the FrameType pool. In the recording, these frames pointed to a frame type with no label.

Additional Notes:

How to test the change?:

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• JIRA: [JIRA-XXXX]

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[dd-octo-sts]

CI Test Results

Run: #36741183325 | Commit: a951daf | Duration: 17m 34s (longest job)

✅ All 32 test jobs passed

Status Overview

JDK	glibc-aarch64/debug	glibc-amd64/debug	musl-aarch64/debug	musl-amd64/debug
8	-	✅	-	-
8-ibm	-	✅	-	-
8-j9	✅	✅	-	-
8-librca	-	-	✅	✅
8-orcl	-	✅	-	-
11	-	✅	-	-
11-j9	✅	✅	-	-
11-librca	-	-	✅	✅
17	✅	✅	-	-
17-graal	✅	✅	-	-
17-j9	✅	✅	-	-
17-librca	-	-	✅	✅
21	✅	✅	-	-
21-graal	✅	✅	-	-
21-librca	-	-	✅	✅
25	✅	✅	-	-
25-graal	✅	✅	-	-
25-librca	-	-	✅	✅

Legend: ✅ passed | ❌ failed | ⚪ skipped | 🚫 cancelled

Summary: Total: 32 | Passed: 32 | Failed: 0

---

Updated: 2026-09-30 16:22:59 UTC

[dd-octo-sts]

✅ All 40 integration tests passed

📊 Dashboard · 👷 Pipeline · 📦 d8911a72

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-30T16:11:25.344043Z	d8911a7	Draft marked ready

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: d8911a7235

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[chatgpt-codex-connector]

Add regression coverage for the remote frame-type entry

Add a test that serializes a recording containing FRAME_NATIVE_REMOTE and verifies that the FrameType constant pool declares eight entries and maps key 7 to this description. This bug fix currently has no accompanying test, so the original missing-label failure—or a mismatch between the hard-coded count and entries—can recur undetected when remote symbolication is enabled.

AGENTS.md reference: AGENTS.md:L445-L446

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[datadog-datadog-prod-us1]

More details

The declared frame-type count matches all eight serialized entries, and FRAME_NATIVE_REMOTE is now emitted with its missing label.

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