Remove TypeConverter and Module from minimal subzero build.

src/IceTypeConverter.cpp

Index: src/IceTypeConverter.cpp
diff --git a/src/IceTypeConverter.cpp b/src/IceTypeConverter.cpp
index 75e79b8d9aa6debc0b91f2c0620cf206ba2dc11f..328dc9ba12a2ec7ee505575879aada5c77405c61 100644
--- a/src/IceTypeConverter.cpp
+++ b/src/IceTypeConverter.cpp
@@ -47,7 +47,7 @@ Type TypeConverter::convertToIceTypeOther(llvm::Type *LLVMTy) const {
   switch (LLVMTy->getTypeID()) {
   case llvm::Type::PointerTyID:
   case llvm::Type::FunctionTyID:
-    return getIcePointerType();
+    return getPointerType();
   default:
     return Ice::IceType_NUM;
   }