do not show completions for numbers #11419

Job	Run time
rustfmt	12s
lint-build	1m 10s
test (stable, x86_64-pc-windows-msvc)	5m 18s
test (stable, aarch64-unknown-linux-musl)	4m 11s
test (stable, x86_64-unknown-linux-gnu)	4m 11s
test (stable, aarch64-apple-darwin, macos-latest, arm64, cargo, true)	7m 22s
test (stable, aarch64-unknown-linux-gnu)	3m 21s
test (stable, x86_64-apple-darwin)	16m 5s
validate	16s
test-wasm	1m 28s
test (stable, x86_64-unknown-linux-musl)	6m 47s
test-projects	2m 27s
	52m 48s

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