[pick #18710][Disassembler] Fix string contraction logic #72123

Job	Run time
diff	8s
license-check	1m 19s
test (ubuntu-ghcloud)	22m 4s
release-notes-check	16s
simtest	16m 51s
move-auto-formatter-ci-test	0s
test-extra (ubuntu-ghcloud)	10m 42s
windows-build (windows-ghcloud)	9m 41s
cargo-deny (advisories, licenses, bans, ...)	3m 18s
clippy	5m 45s
move-test	0s
cutting a new execution layer	1m 52s
rustfmt	19s
test-extra	0s
graphql-rpc	18m 35s
test	0s
	1h 30m 50s

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