[svn r228] Fixed: when new'ing basic types, the storage was not default initialized. Fixed: the tango/lib/compiler/llvmdc/llvmdc.mak makefile was a bit incorrect. Changed: the basic gc is now the default. Changed: renamed a few temporary names in the LLVM IR output.

module bug1;
struct Foo { Foo opSub(ref Foo b) { return Foo(); } }
struct Bar { Foo whee; }
void test(ref Bar moo) { Foo nngh; auto plonk = nngh - moo.whee; }
void main() { Bar bar; test(bar); }