Add Hardhat-style messages to errors

[ricmoo]

Describe the Feature

There are several matcher libraries supported by hardhat which rely on string matching, which is lost during error handling in ethers.

Adding the necessary strings to error messages for CALL_EXCEPTION errors will enable those libraries to work.

For Error(string) = "foobar": VM Exception while processing transaction: reverted with reason string 'foobar'

For no error bytes: Transaction reverted without a reason string

For Panic(uint256) = 1: VM Exception while processing transaction: reverted with panic code 0x1 (Assertion error). There are other 8 panic codes we support though.

Code Example

No response

[ricmoo]

This has been added in 5.6.3, if anyone is using the latest hardhat and matchers that aren't working, please re-open and let me know.

Thanks! :)

[Samboy76]

I´m on ethers 5.7.2 and got Error: VM Exception while processing transaction: reverted with panic code 0x1 (Assertion error) when I attempted to perform a swap function on DEX smart contract router. Any suggestions?