Fix partial application generalization for `...` #9853

Job	Run time
test-devcontainer	16m 43s
build-compiler (windows-2025, 5.3.0, true, win32-x64, x86_64-pc-windows-gnu, .exe, release)	9m 35s
build-compiler (macos-15, 5.3.0, true, darwin-arm64, aarch64-apple-darwin, release)	6m 56s
build-compiler (ubuntu-24.04, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, linux...	5m 4s
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 10s
build-compiler (macos-15-intel, 5.3.0, true, darwin-x64, x86_64-apple-darwin, release)	11m 1s
api-docs	7s
pkg-pr-new	49s
test-integration-rewatch (windows-2025)	6m 38s
test-integration-rewatch (ubuntu-24.04-arm)	2m 48s
test-integration-rewatch (macos-15-intel)	7m 3s
test-integration-rewatch (macos-15)	3m 35s
test-installation-pnpm (windows-2025)	31s
test-integration-rewatch (ubuntu-24.04)	3m 26s
test-installation-pnpm (macos-15-intel)	40s
test-installation-npm (macos-15-intel)	37s
test-installation-pnpm (macos-15)	18s
test-installation-pnpm (ubuntu-24.04-arm)	15s
test-installation-pnpm (ubuntu-24.04)	13s
test-installation-npm (macos-15)	15s
test-installation-npm (windows-2025)	1m 16s
test-installation-npm (ubuntu-24.04)	15s
test-installation-npm (ubuntu-24.04-arm)	21s
publish	-1s
	1h 29m 3s

Provide feedback