Numerous "warning: could not find object file symbol" for Mac Release builds

[garrettr]

Steps to Reproduce

1. yarn build Release

Actual result:

garrettr@Garretts-MacBook-Pro ~/brave> yarn build Release
<snip>
[297/9871] LINK obj/chrome/browser/ui/cocoa/notifications/alert_notification_xpc_service_executable/AlertNotificationService
warning: (x86_64)  could not find object file symbol for symbol __ZN4base3mac15CallWithEHFrameEU13block_pointerFvvE
warning: (x86_64)  could not find object file symbol for symbol CallWithEHFrame_exception_table
warning: (x86_64)  could not find object file symbol for symbol __ZN4base14PlatformThread9CurrentIdEv
warning: (x86_64)  could not find object file symbol for symbol __ZN4base14PlatformThread18YieldCurrentThreadEv
warning: (x86_64)  could not find object file symbol for symbol __ZN4base14PlatformThread5SleepENS_9TimeDeltaE
[339/9775] LINK ./transport_security_state_generator
warning: (x86_64)  could not find object file symbol for symbol __ZN4base3mac15CallWithEHFrameEU13block_pointerFvvE
warning: (x86_64)  could not find object file symbol for symbol CallWithEHFrame_exception_table
warning: (x86_64)  could not find object file symbol for symbol __ZN4base14PlatformThread9CurrentIdEv
warning: (x86_64)  could not find object file symbol for symbol __ZN4base14PlatformThread18YieldCurrentThreadEv
warning: (x86_64)  could not find object file symbol for symbol __ZN4base14PlatformThread5SleepENS_9TimeDeltaE
[356/9741] LINK ./crashpad_handler
warning: (x86_64)  could not find object file symbol for symbol __ZN8crashpad22CrashReportDatabaseMacD1Ev
<snip... hundreds of additional errors follow>

Gist of full traceback.

Expected result:

The build completes without hundreds to thousands of linker warnings.

Reproduces how often:

Easily reproduced.

Brave version (about:brave info)

b19d182

Additional Information

I have only observed these warnings from Release builds, never from Debug builds.