D-Programming-Language/phobos — pull request #832 by denis-sh (2012-10-03 17:00:54+00:00)
Title: Fix Issue 8747 - isAssignable!(int, const(int)) is false

* cause commit: 4a0546480078d51a0ad4dbf141c71bf818e034ec
* add some related checks
* improve `isAssignable` unittest