Fix minor defect in Yarr #2330

Job	Run time
build-on-windows-x64-uwp-x86-shared	6m 31s
build-by-clang	4m 36s
build-on-macos	13m 48s
build-test-api	3m 50s
build-test-codecache	17m 3s
build-test-debugger	3m 29s
build-test-on-android (x86, 28)	15m 30s
build-test-on-self-hosted-arm64-linux	14m 41s
build-test-on-android (x86_64, 28)	14m 51s
build-test-on-self-hosted-arm-linux	14m 20s
build-test-on-self-hosted-linux	24m 12s
build-test-on-x64-release (octane v8 web-tooling-benchmark)	15m 33s
build-test-on-x86-release (new-es octane)	5m 54s
build-test-on-x64-release (octane v8 web-tooling-benchmark, -DESCARGOT_THREADING=ON -DESCARGOT_TC...	15m 51s
build-test-on-x86-x64-debug	41m 36s
build-test-on-x86-release (v8 chakracore spidermonkey)	7m 40s
build-test-wasmjs	4m 17s
build-test-on-x64-release (chakracore spidermonkey new-es)	5m 19s
build-test-on-x86-release (jetstream-only-simple-parallel-1)	3m 10s
build-test-on-x64-release (chakracore spidermonkey new-es, -DESCARGOT_THREADING=ON -DESCARGOT_TCO...	5m 18s
build-test-on-x86-release (jetstream-only-simple-parallel-2 jsc-stress)	4m 1s
check-tidy	53s
build-test-on-x64-release (chakracore spidermonkey new-es, -DESCARGOT_SMALL_CONFIG=ON -DESCARGOT_...	5m 21s
build-test-on-x86-release (jetstream-only-simple-parallel-3 jetstream-only-cdjs)	4m 18s
test-on-windows-clang-cl (x86, -m32)	9m 38s
test-on-windows-x86-x64 (x86)	28m 12s
test-on-windows-x86-x64 (x64)	25m 12s
	5h 15m 4s

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