Test

Implement #675: let wasm_js enable the backend by default #2160

Job	Run time
Linux (i686-unknown-linux-musl)	27s
Linux (x86_64-unknown-linux-musl)	24s
Windows (stable-i686-gnu)	38s
iOS Simulator	5m 29s
Windows (stable-x86_64-gnu)	53s
Windows (stable-i686-msvc)	1m 15s
Windows 7 (on Windows 10)	1m 47s
Tier 1 (ubuntu-24.04, nightly)	17s
Tier 1 (macos-14, stable)	28s
Tier 1 (windows-2022, stable)	53s
Tier 1 (windows-2022, nightly)	39s
Tier 1 (ubuntu-24.04, 1.63)	26s
Tier 1 (windows-2022, 1.63)	54s
Tier 1 (windows-2022, beta)	44s
Sanitizer Linux (aarch64, ubuntu-24.04-arm)	2m 25s
Cross (aarch64-unknown-linux-gnu)	1m 1s
Sanitizer Linux (x86_64, ubuntu-24.04)	2m 45s
Cross (riscv64gc-unknown-linux-gnu)	48s
FreeBSD VM	3m 22s
NetBSD VM	5m 23s
OpenBSD VM	4m 20s
Tier 1 (ubuntu-24.04, stable)	21s
Tier 1 (ubuntu-24.04, beta)	20s
Web with Atomics	1m 23s
Web	1m 23s
WASI	20s
	39m 5s

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