Method ProcessPurgatory

IDEHelper/Compiler/BfCompiler.cpp:2652–2700

When we are unsure of whether an old generic instance will survive, we RebuildType but don't put it in any worklist. One of three things happens: 1) It gets built on demand 2) It gets deleted in UpdateDependencyMap 3) It stays undefined and we need to build it here

//   2) It gets deleted in UpdateDependencyMap
//   3) It stays undefined and we need to build it here
bool BfCompiler::ProcessPurgatory(bool reifiedOnly)
{
	BP_ZONE("BfCompiler::ProcessPurgatory");

	bool didWork = false;

	while (true)
	{
		mContext->RemoveInvalidWorkItems();

		//for (auto type : mGenericInstancePurgatory)
		for (int i = 0; i < (int)mGenericInstancePurgatory.size(); i++)
		{
			auto type = mGenericInstancePurgatory[i];
			if ((reifiedOnly) && (!type->IsReified()))
				continue;

			if ((reifiedOnly) && ((type->mRebuildFlags & BfTypeRebuildFlag_AwaitingReference) != 0))
				continue;

			if (!type->IsDeleting())
			{
				auto module = type->GetModule();
				if (module != NULL)
				{
					if (!module->mIsModuleMutable)
						module->StartExtension();
					module->PopulateType(type, BfPopulateType_Full);
				}
			}

			if (reifiedOnly)
			{
				mGenericInstancePurgatory.RemoveAtFast(i);
				i--;
			}
		}

		if (!reifiedOnly)
			mGenericInstancePurgatory.Clear();

		int prevPurgatorySize = (int)mGenericInstancePurgatory.size();
		if (mContext->ProcessWorkList(reifiedOnly, reifiedOnly))
			didWork = true;
		if (prevPurgatorySize == (int)mGenericInstancePurgatory.size())
			break;
	}
	return didWork;
}

bool BfCompiler::VerifySlotNums()
{