[kraenhansen]

Summary:

Part of #59728. Context in #59729 (comment) (problem 1).

glog's logcat sink is installed in the JNI_OnLoad of reactnativejni. Since #50437, the New Architecture loads that library lazily: on the first transform prop or network inspector use, and on main also on the first touch event. Until then, glog writes only to stderr, so warnings and fatal errors logged during startup never reach logcat. Since Android 7.0, liblog sets the tombstone's abort message from fatal log writes, so those fatal errors also crash with a bare SIGABRT.

This calls gloginit::initialize() from rninstance's JNI_OnLoad. ReactInstance loads rninstance before the runtime, Fabric and TurboModules are created. gloginit::initialize() runs once per process, so the call in reactnativejni stays for the legacy architecture.

Changelog:

[ANDROID] [FIXED] - Send glog output during startup to logcat on the New Architecture

Test Plan:

Tested with rn-hermes-fatal-handler-repro, which triggers a Hermes fatal error with the reason Max heap size was exceeded. I cherry-picked this commit onto 0.88.1, built ./gradlew :packages:react-native:ReactAndroid:assembleRelease, swapped the arm64 libraries into the reproducer's stock-template APK, and ran it 3 times per build on an arm64 API 37 emulator. All runs were consistent.

Build	Crash	glog warnings in logcat	Fatal reason in logcat	Abort message in tombstone
0.88.1	SIGSEGV	No	No	No
0.88.1 + this PR	SIGSEGV	Yes	No	No
0.88.1 + #59729	SIGABRT	No	No	No
0.88.1 + #59729 + this PR	SIGABRT	Yes	Yes	Yes

With this PR and #59729:

W ReactNativeJNI: Codegen component descriptors were not configured from JNI_OnLoad
W ReactNativeJNI: ReactInstance: evaluateJavaScript() with JS bundle
F ReactNativeJNI: OOM: error_code(value = 1, category = vm_allocate_category, message = Max heap size was exceeded)
F DEBUG   : Abort message: 'OOM: error_code(value = 1, category = vm_allocate_category, message = Max heap size was exceeded)'

Nothing was logged twice, including with a transform on the root view, where reactnativejni also loads. I didn't run this on API levels below 37.

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