Remove test files from D2

There is no (public) testsuite for D1, these files were imported
accidentally while backporting fixes from D2. So there is no point on
keeping them around.
Fix 9739: DMD not considering ctor with default args as default ctor

Fix backported from commit 7ab0211e68815663cf84aa0cf98425f0f6e4bade by
k-hara. `resolveFuncCall()` had to be enabled for D1 (was inside a `#if
DMDV2` block) and the argument order adapted to match the current D2
state (to ease any future backporting of fixes).
Merge pull request #1891 from WalterBright/fixptrntab

the last pull of ptrntab broke 16 bit compiles
Merge pull request #1890 from WalterBright/alignment

use Intel recommended alignment
Merge pull request #1892 from leandro-lucarella-sociomantic/fix9739-d1

[D1] fix Issue 9739 - DMD not considering ctor with default args as default ctor
Merge pull request #1894 from WalterBright/fixscheduler

fix instruction scheduler