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Passing This code compiles and runs correctly.
Code
// PIN (part): part tags are kebab identifiers like every name in Koru
// (010_053). `_` is refused — a snake tag would split the module under a
// name nothing else in the pipeline can say.
part a_b
Must fail at frontend compile:
Parsing or type-checking must reject the program.
Expected patterns
Each line is a regex that must match the program output.
error\[KORU034\]:.*part tag.*'a_b'