Write out global initializers and data rel directly to ELF file.

src/IceDefs.h

Index: src/IceDefs.h
diff --git a/src/IceDefs.h b/src/IceDefs.h
index d327ea63e453b110620882fb0b1ba59fd7843d4d..d27c742c2ab011f5400557296c5f68e4b09bbc08 100644
--- a/src/IceDefs.h
+++ b/src/IceDefs.h
@@ -103,6 +103,8 @@ typedef std::vector<Variable *, CfgLocalAllocator<Variable *>> VarList;
 typedef std::vector<CfgNode *, CfgLocalAllocator<CfgNode *>> NodeList;
 typedef std::vector<Constant *> ConstantList;
 
+typedef std::vector<VariableDeclaration *> VariableDeclarationList;
+
 // SizeT is for holding small-ish limits like number of source
 // operands in an instruction.  It is used instead of size_t (which
 // may be 64-bits wide) when we want to save space.