Generate opcode metadata from bytecodes.c instead of opcode.py

[iritkatriel]

We would ideally have bytecodes.c as the single source of truth about opcodes. So opcode.py and the code generated from it should be replaced by alternatives from the cases_generator, if we can.

Linked PRs

• gh-105481: add flags to each instr in the opcode metadata table, to replace opcode.hasarg/hasname/hasconst #105482
• gh-105481: add pseudo-instructions to the cases DSL #105506
• gh-105481: Fix types and bug for pseudos #105788
• gh-105481: add HAS_JUMP flag to opcode metadata #105791
• gh-105481: remove HAS_ARG, HAS_CONST, IS_JUMP_OPCODE, IS_PSEUDO_OPCODE and replace by their new versions #105865
• gh-105481: generate _specializations and _specialized_instructions from bytecodes.c #105913
• gh-105481: refactor instr flag related code into a new InstructionFlags class #105950
• gh-105481: move Python/opcode_metadata.h to Include/internal/pycore_opcode_metadata.h #106673
• gh-105481: expose opcode metadata via the _opcode module #106688
• gh-105481: Generate the opcode lists in dis from data extracted from bytecodes.c #106758
• gh-105481: do not auto-generate pycore_intrinsics.h #106913
• gh-105481: add OPCODE_IS_INSTRUMENTED (generated from bytecodes.c) to replace MIN_INSTRUMENTED_OPCODE (defined in opcode.py) #107276
• gh-105481: remove dependency of _inline_cache_entries on opname #107339
• gh-105481: the ENABLE_SPECIALIZATION flag does not need to be generated by the build script, or exposed in opcode.py #107534
• gh-105481: combine regen-opcode-targets with regen-opcode to avoid calculating the specialized opcodes in two places #107540
• gh-105481: simplify definition of pseudo ops in Lib/opcode.py #107561
• GH-105481: Mark more files as generated #107598
• gh-105481: split opcode_ids.h out of opcode.h so that it can be generated separately #107866
• gh-105481: reduce repetition in opcode metadata generation code #107942
• gh-105481: generate op IDs from bytecode.c instead of hard coding them in opcode.py #107971
• gh-105481: generate _PyOpcode_Deopt and _PyOpcode_OpName in generate_cases instead of generate_opcode_h #108025
• gh-105481: fix out of date comment #108079
• gh-105481: opcode.h is no longer generated during the build #108080
• gh-105481: remove regen-opcode. Generated _PyOpcode_Caches in regen-cases. #108367

[iritkatriel]

@gvanrossum The old macros HAS_ARG and HAS_CONST are exposed in Include/opcode.h (and have been for a long time). Does this mean that before we can remove them, we need to expose the opcode_metadata.h file there as well? We should also mark all of this as unstable API (how do we do that?)