Commit 76c10bd1 authored by Hero Bird's avatar Hero Bird Committed by GitHub

Use ink_prelude crate in the rest of ink! (#285)

* [*] use ink_prelude crate in the rest of ink!

# Conflicts:
#	core/Cargo.toml
#	core/src/storage/flush.rs

* [core] fix usage of ink_prelude in buffer_arena

* [core] apply rustfmt
parent 19fe1917
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