Use new printer for signature help #11350

Job	Run time
validate	24s
test-wasm	1m 25s
rustfmt	16s
lint-build	56s
test (stable, x86_64-unknown-linux-gnu)	4m 12s
test (stable, aarch64-unknown-linux-musl)	4m 3s
test (stable, x86_64-pc-windows-msvc)	5m 10s
test (stable, x86_64-unknown-linux-musl)	5m 40s
test (stable, x86_64-apple-darwin)	8m 44s
test (stable, aarch64-apple-darwin, macos-latest, arm64, cargo, true)	5m 24s
test (stable, aarch64-unknown-linux-gnu)	3m 22s
test-projects	2m 49s
	42m 25s

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