Fixes Issue 7408 - __traits(compiles) should work on builtin template instance properties.
Merge pull request #1456 from AndrejMitrovic/Fix7408

Issue 7408 - __traits(compiles) should work on builtin template instance properties
Add vergen to .gitignore
Merge pull request #1508 from mxfm/master

[trivial] Add src/vergen to .gitignore