Generate Symbol.dispose on classes #2474

Job	Run time
build_nightly	1m 49s
Verify that web-sys is compiled correctly	46s
build_examples	3m 9s
build_benchmarks	1m 17s
Check	1m 4s
Clippy	1m 48s
Clippy (project)	2m 43s
Clippy (web-sys)	2m 24s
dist_linux_aarch64_gnu	3m 13s
dist_linux_x86_64_musl	2m 36s
dist_macos_aarch64	1m 37s
dist_macos_x86_64	1m 15s
dist_windows	3m 18s
doc_api	1m 9s
doc_book	5s
Check MSRV for CLI tools	31s
Check MSRV for libraries	55s
Rustfmt	7s
Taplo	8s
Build and test the deno example	49s
Run native tests	1m 27s
Run wasm-bindgen crate tests with multithreading	1m 40s
Run UI compile-fail tests	45s
Run wasm-bindgen crate tests (wasm-bindgen)	4m 9s
Run wasm-bindgen crate tests with externref feature	1m 21s
Run wasm-bindgen wasm test	1m 14s
Run wasm-bindgen crate tests (wasm-bindgen (serde-serialize))	1m 31s
Run wasm-bindgen crate tests with multi-value feature	3m 22s
Run web-sys tests (with geckodriver)	23s
Run wasm-bindgen crate tests (wasm-bindgen (enable-interning))	1m 26s
Run web-sys (all features) tests (with geckodriver)	57s
Run web-sys (unstable, all features) tests (with geckodriver)	1m 0s
Run js-sys tests (with geckodriver)	1m 13s
Run js-sys (unstable) tests (with geckodriver)	1m 29s
Run wasm-bindgen-webidl tests (with geckodriver)	23s
Run webidl-tests tests (with geckodriver)	1m 5s
Run webidl-tests (unstable) tests (with geckodriver)	1m 4s
Run typescript-tests tests (with geckodriver)	1m 16s
test_nightly	43s
test_examples	1m 34s
deploy	29s
	59m 14s

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