Fix iterator / iterable typedefs, add generator typedefs #9902

Job	Run time
test-devcontainer	18m 37s
build-compiler (ubuntu-24.04-arm, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, t...	5m 28s
build-compiler (ubuntu-24.04, ocaml-variants.5.0.0+options,ocaml-option-static, linux-x64, x86_64...	5m 12s
build-compiler (ubuntu-24.04, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, linux...	5m 34s
build-compiler (macos-15-intel, 5.3.0, true, darwin-x64, x86_64-apple-darwin, release)	15m 0s
build-compiler (macos-15, 5.3.0, true, darwin-arm64, aarch64-apple-darwin, release)	5m 50s
build-compiler (windows-2025, 5.3.0, true, win32-x64, x86_64-pc-windows-gnu, .exe, release)	10m 31s
pkg-pr-new	52s
api-docs	2m 41s
test-installation-npm (macos-15)	14s
test-installation-npm (windows-2025)	51s
test-integration-rewatch (ubuntu-24.04-arm)	2m 50s
test-integration-rewatch (macos-15)	4m 13s
test-installation-pnpm (macos-15)	16s
test-installation-npm (ubuntu-24.04)	15s
test-installation-pnpm (windows-2025)	48s
test-installation-npm (macos-15-intel)	23s
test-integration-rewatch (windows-2025)	5m 42s
test-installation-pnpm (ubuntu-24.04-arm)	25s
test-installation-npm (ubuntu-24.04-arm)	16s
test-installation-pnpm (macos-15-intel)	25s
test-installation-pnpm (ubuntu-24.04)	17s
test-integration-rewatch (macos-15-intel)	5m 26s
test-integration-rewatch (ubuntu-24.04)	3m 37s
publish	1s
	1h 35m 44s

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