bleeps: Patch WETH9.sol for 0.8.x

Author: cameel

test/externalTests/bleeps.sh

@@ -66,6 +66,12 @@ function bleeps_test
     pushd "contracts/"
     sed -i 's|"bleeps-common": "workspace:\*",|"bleeps-common": "file:../common-lib/",|g' package.json
 
+    sed -i 's/function() public/fallback() external/g' src/externals/WETH9.sol
+    sed -i 's/this\.balance/address(this).balance/g' src/externals/WETH9.sol
+    sed -i 's/uint(-1)/type(uint).max/g' src/externals/WETH9.sol
+    sed -i 's/msg\.sender\.transfer(/payable(msg.sender).transfer(/g' src/externals/WETH9.sol
+    sed -i 's/^\s*\(Deposit\|Withdrawal\|Approval\|Transfer\)(/emit \1(/g' src/externals/WETH9.sol
+
     neutralize_package_lock
     neutralize_package_json_hooks
     force_hardhat_compiler_binary "$config_file" "$BINARY_TYPE" "$BINARY_PATH"