Replace wasm engine with walrus #1984

Job	Run time
build-on-macos	5m 3s
build-on-windows-x64-uwp-x86-shared	9m 9s
build-test-api	7m 35s
build-by-clang	7m 49s
build-test-codecache	7m 37s
build-test-debugger	4m 49s
build-test-on-android (x86, 28)	25m 58s
build-test-on-android (x86_64, 28)	33m 27s
build-test-on-x64-release (new-es octane v8)	8m 33s
build-test-on-x64-release (new-es octane v8, -DESCARGOT_THREADING=ON -DESCARGOT_TCO=ON)	8m 13s
build-test-on-x64-release (chakracore spidermonkey)	9m 26s
build-test-on-x64-release (chakracore spidermonkey, -DESCARGOT_THREADING=ON -DESCARGOT_TCO=ON)	11m 0s
build-test-on-x64-release (chakracore spidermonkey, -DESCARGOT_SMALL_CONFIG=ON -DESCARGOT_USE_CUS...	8m 53s
build-test-on-x86-release (octane)	7m 36s
build-test-on-x86-release (v8 chakracore spidermonkey)	9m 39s
build-test-on-x86-release (jetstream-only-simple-parallel-1)	13m 16s
build-test-on-x86-release (jetstream-only-simple-parallel-2 jsc-stress)	9m 23s
build-test-on-x86-release (jetstream-only-simple-parallel-3 jetstream-only-cdjs)	7m 33s
build-test-on-x86-x64-debug	6m 25s
build-test-wasmjs	6m 31s
check-tidy	1m 26s
test-on-windows-clang-cl (x86, -m32)	11m 2s
test-on-windows-x86-x64 (x86)	31m 38s
test-on-windows-x86-x64 (x64)	38m 55s
	4h 50m 56s

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