D-Programming-Language/dmd — pull request #3654 by NilsBossung (2014-06-09 22:46:54+00:00)
Title: implicit conversion to mutable via alias this

Fixes:
* Issue 12883 - implicit conversion of struct to mutable via alias this
* Issue 12884 - implicit conversion wrongly prefers casting immutable away
over alias this when target type is base class

The line that's removed from test/fail_compilation/ice10016.d didn't show
up without alias this, and it didn't add any value specific to
alias this.