DI-based TypeHierarchy

[fabianbs96]

Story

The current LLVMTypeHierarchy implementation relies on unrealistic assumptions about the code structure in LLVM IR and is of only little use in practice.
We need a more robust implementation that relies on debug-information.

Prerequisites

• issue x

Out Of Scope

• A isn't part of this

Acceptance Criteria

The following acceptance criteria are defined regarding the result of this story:
Clarify what the final result should be, not how to accomplish it.

• DebugInfo-based TypeHierarchy implementation that works even for C++-based IR that was composed from different source-files via llvm-link
• Criterion 2

Related Stories

• none

Follow-up Stories

• none