[svn r233] Added: -oq command line option for writing fully qualified object names.

Added: started support for x86 80bit floating point.
Changed: aggregates passed by value now use the llvm 'byval' parameter attribute, also lays ground work for
using other attributes.
Changed: eliminated a lot more std::vectorS, these showed up pretty much at the top when profiling!
Changed: performed other misc. cleanups.
Changed: halt expression now call the new llvm trap intrinsic instead of an assert(0).
Changed: dstress suite now passes -O0 by default, this only eliminates unreferenced globals, which speeds up
linking quite a bit.

tango/lib/compiler/llvmdc/memory.d

@@ -47,6 +47,7 @@ private
         {
                 void* llvm_frameaddress(uint level=0);
         }
+        extern(C) int printf(char*, ...);
     }
 }
 
@@ -161,6 +162,7 @@ extern (C) void rt_scanStaticData( scanFn scan )
     }
     else version( linux )
     {
+        //printf("scanning static data from %p to %p\n", &__data_start, &_end);
         scan( &__data_start, &_end );
     }
     else