Nested reducers are not properly handled by type checker

[PaulKlint]

int wordCount(list[str] lines) = (0 | it + (0 | it + 1 | /\w+/ := line) | str line <- lines);

test bool wordCount1() = wordCount(["Andra moi ennepe,", "Mousa, polutropon,", "hos mala polla "]) == 8;

Is correct but gives the following type error:

Cannot re-declare name that is already declared in the current function or closure: it

[I have added this as test to ReducerTests]

[mahills]

I should be able to fix this fairly easily. I'll take a look...

[PaulKlint]

Thanks @mahills! These are the wonders of documentation-based testing: I am currently rewriting the Tutor to work with the compiler and compile and execute all Rascal fragments in our documentation. This is why this came up today.

[PaulKlint]

Great!