Remove dead gc code from frontend and root
fix Issue 11365 - Allow D source file names to have no extension (or an arbitrary extension)
fix Issue 11518 - DMD segfault on multiple template match

Incomplete `specType`, like as (T : A!T), should not be used during determination of template partial specialization order.
fix Issue 10770 - is(T BASE==enum) with tag enum T - AssertFail:'type' line 428 declaration.c

TypeEnum::toBasetype does not cause fwdref error for named opaque enum type
Fix Issue 11532 - Variadics using the C ABI should not accept D-specific types
fix Issue 9831 - Error message with failed lambda inference
fix Issue 11534 - [CTFE] inout + returning a pointer into a member array
Merge pull request #2800 from 9rnsr/fix11534

Issue 11534 - [CTFE] inout + returning a pointer into a member array
Remove cases where string literals are passed to variadic functions
Merge pull request #2798 from 9rnsr/fix9831

Issue 9831 - Error message with failed lambda inference
use Environment32/64 to set the lib32/64 path
Merge pull request #2801 from yebblies/stringvararg

[DDMD] Remove cases where string literals are passed to variadic functions
Merge pull request #2797 from yebblies/issue11532

Issue 11532 - Variadics using the C ABI should not accept D-specific types
Merge pull request #2756 from yebblies/removegc

[cleanup] Remove dead gc code from frontend and root
Merge pull request #2795 from 9rnsr/fix10770

Issue 10770 - is(T BASE==enum) with tag enum T - AssertFail:'type' line 428 declaration.c
add Makefile to .gitignore

- useful for a local Makefile in the working copy
Merge pull request #2802 from dawgfoto/dmdConf

use Environment32/64 to set the lib32/64 path
Merge pull request #2769 from 9rnsr/fix11518

Issue 11518 - DMD segfault on multiple template match
Merge pull request #2731 from WalterBright/fix11365

fix Issue 11365 - Allow D source file names to have no extension (or an arbitrary extension)
Remove another TEXTUAL_ASSEMBLY_OUT