A few DMD PRs needing attention. They are easy reviews.

[Michael V. Franklin]

Fix compiler preferring `body` to `do`
https://github.com/dlang/dmd/pull/7347

Fix issue 6400 - Better interaction between with() and opDispatch 
(Part 2)
https://github.com/dlang/dmd/pull/7356

Fix Issue 15094 - __traits(getMember) fails when the source is a 
struct/class field
https://github.com/dlang/dmd/pull/7341

Fix Issue 12496: __traits(parent, x) returns incorrect symbol
https://github.com/dlang/dmd/pull/7097

Thanks,
Mike