Replace wasm engine with walrus #1983

Job	Run time
build-by-clang	6m 19s
build-on-macos	5m 24s
build-on-windows-x64-uwp-x86-shared	9m 0s
build-test-api	7m 37s
build-test-codecache	9m 32s
build-test-debugger	4m 15s
build-test-on-android (x86, 28)	32m 58s
build-test-on-android (x86_64, 28)	23m 32s
build-test-on-x64-release (new-es octane v8)	9m 30s
build-test-on-x64-release (new-es octane v8, -DESCARGOT_THREADING=ON -DESCARGOT_TCO=ON)	8m 36s
build-test-on-x64-release (chakracore spidermonkey)	10m 48s
build-test-on-x64-release (chakracore spidermonkey, -DESCARGOT_THREADING=ON -DESCARGOT_TCO=ON)	9m 39s
build-test-on-x64-release (chakracore spidermonkey, -DESCARGOT_SMALL_CONFIG=ON -DESCARGOT_USE_CUS...	10m 4s
build-test-on-x86-release (octane)	2m 51s
build-test-on-x86-release (v8 chakracore spidermonkey)	2m 52s
build-test-on-x86-release (jetstream-only-simple-parallel-1)	1s
build-test-on-x86-release (jetstream-only-simple-parallel-2 jsc-stress)	3m 6s
build-test-on-x86-release (jetstream-only-simple-parallel-3 jetstream-only-cdjs)	2m 52s
build-test-on-x86-x64-debug	2m 56s
build-test-wasmjs	6m 33s
check-tidy	1m 24s
test-on-windows-clang-cl (x86, -m32)	13m 51s
test-on-windows-x86-x64 (x86)	46m 54s
test-on-windows-x86-x64 (x64)	49m 38s
	4h 40m 12s

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