Move CODE directly into TestExternalities (#1682)

* Move `CODE` directly into `TestExternalities`

This change allows tests to modify CODE in storage.

* Update more hashes

* Test

* Move `code` back into a field of `TestExternalities`

* Update wasm after master merge

substrate/node/runtime/wasm/Cargo.lock

@@ -1577,7 +1577,6 @@ version = "0.1.0"
 dependencies = [
  "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libsecp256k1 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1587,6 +1586,7 @@ dependencies = [
  "serde_derive 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)",
  "sr-io 0.1.0",
  "sr-version 0.1.0",
+ "substrate-panic-handler 0.1.0",
  "substrate-primitives 0.1.0",
  "substrate-serializer 0.1.0",
  "substrate-state-machine 0.1.0",
@@ -1627,6 +1627,14 @@ dependencies = [
  "substrate-primitives 0.1.0",
 ]
 
+[[package]]
+name = "substrate-panic-handler"
+version = "0.1.0"
+dependencies = [
+ "backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "substrate-primitives"
 version = "0.1.0"
@@ -1669,6 +1677,7 @@ dependencies = [
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-codec 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "substrate-panic-handler 0.1.0",
  "substrate-primitives 0.1.0",
  "substrate-trie 0.4.0",
  "trie-db 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",