report: wording
examples: update pass-fold-map
examples: update pass-mutual-recursion
examples: update fail-mutual-recursion-lists
examples: update pass-polymorphism-mutual-recursion
examples: update fail-polymorphism-mutual-recursion
examples: update pass-transitive-locals-backwards
examples: update fail-unknown-identifier
examples: update fail-not-enough-function-arguments
examples: update fail-no-polymorphism-in-variables-lvalues
examples: update fail-no-polymorphism-in-variables-rvalues
examples: update pass-assignment-to-function
examples: update shouldfail-assignment-to-function
examples: update pass-return-function
examples: update fail-return-function
examples: add pass-assign-global-to-argument