This makes the following changes:
- Add template `_d_newclassT` to `druntime.src.core.lifetime.d`
- Replace lowering of `new C()` to `_d_newclassT!C()`
- Add `lowering` member to `NewExp`. This field stores the above
lowering to be used by e2ir.d
- Keep the old `_d_newclass` hook because it's used by
`TypeInfo_Class.create()`
- Add dummy `_d_newclassT` hook to tests that redefine the `object`
module
- Remove `new MinHeap!(TestType)()` from `fail308.d`. Otherwise the
errror was changed and printed the local path to druntime
- Move `err` to global scope in rt.sections.d to avoid the frontend
lowering
- Account for the `GC.malloc()` called by the template hook in the
`-profile=gc` tests
Signed-off-by: Teodor Dutu <teodor.dutu@gmail.com>
Signed-off-by: Teodor Dutu <teodor.dutu@gmail.com>