Fix the EVENTUALLY macro in unit tests.
Fix the EVENTUALLY macro in unit tests.

The code body should be executed inside its own scope so
that RAII destructors are properly called before sleeping.

kewaunited/passenger,phusion/passenger,phusion/passenger,kewaunited/passenger,antek-drzewiecki/passenger,jawj/passenger,antek-drzewiecki/passenger,phusion/passenger,clemensg/passenger,clemensg/passenger,cgvarela/passenger,jawj/passenger,phusion/passenger,bf4/passenger,clemensg/passenger,cgvarela/passenger,cgvarela/passenger,jawj/passenger,antek-drzewiecki/passenger,bf4/passenger,antek-drzewiecki/passenger,clemensg/passenger,jawj/passenger,kewaunited/passenger,antek-drzewiecki/passenger,kewaunited/passenger,clemensg/passenger,phusion/passenger,bf4/passenger,jawj/passenger,cgvarela/passenger,phusion/passenger,phusion/passenger,cgvarela/passenger,antek-drzewiecki/passenger,bf4/passenger,bf4/passenger,jawj/passenger,jawj/passenger,clemensg/passenger,kewaunited/passenger,clemensg/passenger,bf4/passenger,kewaunited/passenger,kewaunited/passenger,clemensg/passenger,cgvarela/passenger,bf4/passenger,kewaunited/passenger,cgvarela/passenger,phusion/passenger,antek-drzewiecki/passenger,antek-drzewiecki/passenger,cgvarela/passenger