Changed the handling of variadic intrinsics a bit. Removed the -fp80 option and made real be 80bit floats on X86, this is what the D spec really says it should be and fixes a bunch of issues. Changed the handling of parameter attributes to a bit more generalized approach. Added sext/zext attributes for byte/short/ubyte/ushort parameters, fixes #60 . Parameter attribs now properly set for intrinsic calls if necessary. Made the tango.math.Math patch less intrusive. Fixed/added some mini tests.

--- a/dmd/declaration.h	Fri Aug 01 01:12:33 2008 +0200
+++ b/dmd/declaration.h	Fri Aug 01 17:59:58 2008 +0200
@@ -642,6 +642,9 @@
     std::set<VarDeclaration*> nestedVars;
     std::string intrinsicName;
 
+    bool isIntrinsic();
+    bool isVaIntrinsic();
+
     // we keep our own table of label statements as LabelDsymbolS
     // don't always carry their corresponding statement along ...
     typedef std::map<const char*, LabelStatement*> LabelMap;