Compilation failure when whitespace between `require` and terminating semi-colon

[AntonGulak]

Hi again :)

Contracts compiled with Solidity 0.4.21 are failing to compile when they include require(bool) statements, resulting in a
ParserError: Expected token Semicolon got 'Identifier' error. Specifically, require(false) c_3a887c65(0x55bf89d8a3187e04); /* requirePost */ HardhatError: HH600: Compilation failed.

Compilation succeeds without coverage

Thank you for the quick response

[cgewecke]

@AntonGulak This seems to be caused by the presence of extra space between the require and the terminating ;

A work-around is to change the code as below

- require(false) ;
+ require(false);

Unfortunately it's a little tricky to fix this - ideally the parser we use would include the semi-colon in its reporting of the expression range but it doesn't...

[cgewecke]

This has been patch via #884 and published in v0.8.12.

(Thanks again for finding all these bugs!!)