upstream ss2neon.h; clang 19 workaround #2368

Job	Run time
JE (FreeBSD arm64)	50m 23s
JE (FreeBSD cross-platform-actions)	17m 1s
JE (android)	30m 42s
JE (FreeBSD vmactions)	0s
JE (Linux)	22m 35s
JE (Linux gcc)	26m 28s
JE (macOS)	32m 35s
JE (macOS arm64)	19m 57s
JE (OpenBSD cross-platform-actions)	15m 5s
JE (OpenBSD vmactions)	0s
JE (OpenBSD arm64)	38m 57s
JE (Raspberry32)	31m 33s
JE (Raspberry)	44m 49s
JE (wasm)	3m 37s
JE (Windows)	25m 21s
JE (Windows 32)	6m 5s
JE (Windows arm64)	1m 3s
Test Results	0s
Run Webhook	0s
	6h 6m 11s

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