set chain_id in test runtime

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>

crates/integration/contracts/Context.sol

@@ -30,6 +30,14 @@ pragma solidity ^0.8;
                 },
                 "data": "fc9c8d39"
             }
+        },
+        {
+            "Call": {
+                "dest": {
+                    "Instantiated": 0
+                },
+                "data": "3af973b1"
+            }
         }
     ]
 }
@@ -43,4 +51,12 @@ contract Context {
     function caller() public view returns (address ret) {
         ret = msg.sender;
     }
+
+    function chain_id() public view returns (uint) {
+        uint256 id;
+        assembly {
+            id := chainid()
+        }
+        return id;
+    }
 }

crates/llvm-context/src/polkavm/evm/context.rs

@@ -43,7 +43,7 @@ pub fn chain_id<'ctx, D>(
 where
     D: Dependency + Clone,
 {
-    Ok(context.word_const(0).as_basic_value_enum())
+    context.build_runtime_call_to_getter(runtime_api::imports::CHAIN_ID)
 }
 
 /// Translates the `block_number` instruction.

crates/runner/src/runtime.rs

@@ -82,4 +82,5 @@ impl pallet_revive::Config for Runtime {
     type InstantiateOrigin = EnsureSigned<AccountId32>;
     type CodeHashLockupDepositPercent = CodeHashLockupDepositPercent;
     type Debug = ();
+    type ChainId = ConstU64<420_420_420>;
 }