Kill the syntax `alias this = sym;`
Fixes Issue 2630 - Support documenting unittest code as code samples.
detab
fix Issue 9442 - typeid() doesn't work without `this.` for class fields
fix Issue 9436 - enum cannot be forward referenced with cyclic imports and mixin
fix Issue 9439 - CTFE ICE: calling member function after "incorrect this" error
< and > are magic only if generating HTML
Add `bool isv` parameter to Dsymbol::mangle()
fix Issue 8847 - voldemort + inout confuses "is"
Merge pull request #1594 from 9rnsr/fix9436

Issue 9436 - enum cannot be forward referenced with cyclic imports and mixin
Merge pull request #1597 from 9rnsr/fix9439

Issue 9439 - CTFE ICE: calling member function after "incorrect this" error
Merge pull request #1599 from andralex/master

< and > should be magic only when generating HTML
remove old dead code
Merge pull request #1602 from WalterBright/refactor2

remove old dead code
FileName* => const char*
remove dependency on list_t
Mangle pre-inference attributes for Voldemort types.
remove unnecessary #include's
Merge pull request #1604 from WalterBright/refactor4

remove unnecessary #include's
Merge pull request #1603 from WalterBright/refactor3

remove dependency on list_t