[CherryPick] Patches to make LLDB use IDX_Parent #8183
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This commit brings support for debug_names in DWARFYAML. It parses YAML and generates emits a DWARF5 Accelerator table with the following limitations: 1. All forms must have a fixed length (zero length is also ok). 2. Hard-coded support for DWARF 5 and DWARF32. 3. The generated table does not contain a hash index All of these limitations can be lifted in the future, but for now this is good enough to enable testing. (cherry picked from commit a8b4c11)
…query (llvm#79932) This commit changes DebugNamesDWARFIndex so that it now overrides `GetFullyQualifiedType` and attempts to use DW_IDX_parent, when available, to speed up such queries. When this type of information is not available, the base-class implementation is used. With this commit, we now achieve the 4x speedups reported in [1]. [1]: https://discourse.llvm.org/t/rfc-improve-dwarf-5-debug-names-type-lookup-parsing-speed/74151/38 (cherry picked from commit 91f4a84)
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These are the final two commits!