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Jon Ross-Perkins
d12583fc08
I'm partly doing this because the current setup would be difficult to share with the toolchain. e.g., ProtoToCarbon isn't explorer-specific, but the only way to run it via CLI is the explorer's fuzzverter. I want a separate tool.
This change:
- Adds a //common/fuzzing:proto_to_carbon tool.
- The rest of fuzzverter is now just //explorer/fuzzing:ast_to_proto.
- The change simplifies overall handling and removes a LLVM CLI dependency.
- Stops allowing unknown fields in the proto.
- This has mostly led to forgetting to remove fuzzer inputs that were for removed features.
- Moves more non-explorer-specific bits to //common/fuzzing.
- Cleans up remaining pieces in //explorer/fuzzing
- Merges the //explorer/fuzzing proto tests, which deduplicates AstToString copies.
- These tests also had duplicate dependencies, etc -- and all complete in ~6s.
- Updates and fixes regen_corpus which was previously broken by other changes.
- Updates the README to reflect changes.
- Removes obsolete proto-fuzzer build configuration (AFAICT this is no longer needed).