Subzero. Allocate global initializers from a dedicated arena.

src/IceELFObjectWriter.h

Index: src/IceELFObjectWriter.h
diff --git a/src/IceELFObjectWriter.h b/src/IceELFObjectWriter.h
index 4c5b80c111123dd33494428432af6b48ea53516d..94e60fdcbbfd11d00be22afe2e7639af1f7a37f7 100644
--- a/src/IceELFObjectWriter.h
+++ b/src/IceELFObjectWriter.h
@@ -24,6 +24,8 @@ using namespace llvm::ELF;
 
 namespace Ice {
 
+using VariableDeclarationPartition = std::vector<VariableDeclaration *>;
+
 /// Higher level ELF object writer. Manages section information and writes the
 /// final ELF object. The object writer will write to file the code and data as
 /// it is being defined (rather than keep a copy). After all definitions are
@@ -153,7 +155,7 @@ private:
   /// SectionType, given the global variables Vars belonging to that
   /// SectionType.
   void writeDataOfType(SectionType SectionType,
-                       const VariableDeclarationList &Vars,
+                       const VariableDeclarationPartition &Vars,
                        FixupKind RelocationKind, const IceString &SectionSuffix,
                        bool IsPIC);