Start processing function blocks in Subzero.

src/IceConverter.h

Index: src/IceConverter.h
diff --git a/src/IceConverter.h b/src/IceConverter.h
index 30d3b6041c4d8e859d6fa2e0351b4c5b135273d1..7b0d6e793b8081168b076a185acc4b3989a2cee8 100644
--- a/src/IceConverter.h
+++ b/src/IceConverter.h
@@ -24,16 +24,18 @@ namespace Ice {
 
 class Converter : public Translator {
 public:
-  Converter(GlobalContext *Ctx, Ice::ClFlags &Flags) : Translator(Ctx, Flags) {}
+  Converter(llvm::Module *Mod, GlobalContext *Ctx, Ice::ClFlags &Flags)
+      : Translator(Ctx, Flags), Mod(Mod) {}
   /// Converts the LLVM Module to ICE. Sets exit status to false if successful,
   /// true otherwise.
-  void convertToIce(llvm::Module *Mod);
+  void convertToIce();
 
 private:
+  llvm::Module *Mod;
   // Converts globals to ICE, and then machine code.
-  void convertGlobals(llvm::Module *Mod);
+  void convertGlobals();
   // Converts functions to ICE, and then machine code.
-  void convertFunctions(llvm::Module *Mod);
+  void convertFunctions();
   Converter(const Converter &) LLVM_DELETED_FUNCTION;
   Converter &operator=(const Converter &) LLVM_DELETED_FUNCTION;
 };