Not implemented function call: LoadImmutable required for integration with Remix IDE

[smiasojed]

Name::LoadImmutable => todo!(), is not implemented in revive but used in Remix unit tests

Error message from Remix:

Contract `remix_tests.sol:Assert` compiling error: thread 'main' panicked at crates/solidity/src/yul/parser/statement/expression/function_call/mod.rs:504:36:
not yet implemented
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[xermicus]

Will be fixed with #16 :)