Issue 13001 - Add VRE support for ternary operator ?:

https://issues.dlang.org/show_bug.cgi?id=13001
You can check the exact boundaries with `b = i - 130;` `static assert(!__traits(compiles, b = i - 131));` and similar for upper bound.  The CondExp tests should probably not be mixed in with the foreach tests, and there is no need to create a new file for this test.
Also, indentation doesn't match.