[svn r229] Updated the object.d implementation to the latest Tango. Fixed a bunch of the built-in typeinfos for arrays, they did not inherit TypeInfo_Array. Applied patch to tango/text/convert/Layout.d by fvbommel, closes #47 . Cleaned up some type code. Replaced uses of llvm::Type with LLType (a typedef), same for Value and Constant. Fixed a few cases where typeinfo for user structs could be emitted multiple times, seems to still be some cases of this :/

Use
./runtest tmp-sensible-name
to run tests for llvmdc.
Move into reference/ subfolder and add to svn if desired.

Use
./findregressions old-test-resultfile tmp-sensible-name
to find changes.

Recommended for comparing to DMD:
./findregressions reference/dmd-version llvmdc-something | grep -v "PASS -> XFAIL" | sort > tmp-new-regressions