fix typos

[ghost]

haskell-c2hs.el
haskell-completions.el
haskell-decl-scan.el
haskell-font-lock.el
haskell-indent.el
haskell-indentation.el
haskell-mode.el
haskell-utils.el
tests/haskell-font-lock-tests.el

[ghost]

@purcell

grammar looks off in this comment

haskell-completions.el

;; For major use function `haskell-completions-grab-prefix' is supposed, and
;; other prefix grabbing functions are used internally by it.  So, only this
;; function have prefix minimal length functionality and invokes predicate
;; function `haskell-completions-can-grab-prefix'.

---

last word appears to be a typo
grammar looks off in this comment

tests/haskell-utils-tests.el

    ;; set some random value to flag to test that it will be reseted

[purcell]

thanks

[ghost]

guess the intention was reset

tests/haskell-utils-tests.el

   ;; set some random value to flag to test that it will be reseted

[purcell]

guess the intention was reset

yes, fixed, thanks