[mypyc] Fix and clean up bytearray support in primitives #20550
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These are now unreachable, since bytearray isn't compatible with bytes. We can add bytearray-specific primitives later.
p-sawicki
approved these changes
Jan 8, 2026
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Fix the return type of the
builtins.bytearrayprimitive op. Remove unreachable code from bytes primitive implementations, since they no longer can't be called with bytearray arguments. We can add bytearray-specific primitives later.