Fix compilation and support on 32-bit targets

Author: alexcrichton

Cargo.toml

@@ -39,3 +39,6 @@ members = [
 lto = true
 opt-level = 's'
 panic = 'abort'
+
+[patch.crates-io]
+parity-wasm = { git = 'https://github.com/alexcrichton/parity-wasm', branch = 'fix-overflow' }

crates/cli-support/Cargo.toml

@@ -16,4 +16,4 @@ parity-wasm = "0.27"
 serde_json = "1.0"
 wasm-bindgen-shared = { path = "../shared", version = '=0.2.2' }
 wasm-gc-api = "0.1"
-wasmi = "0.1"
+wasmi = { version = "0.1", features = ["opt-in-32bit"] }