debug-info type is not only integer

[philderbeast]

What is wrong with the docs?
The legacy parser can parse booleans for debug-info but its type is shown as integer, not integer | boolean in the users guide.

cabal/doc/cabal-project-description-file.rst

Lines 1099 to 1116 in 4907eec

	.. cfg-field:: debug-info: integer
	--enable-debug-info[=n]
	--disable-debug-info
	:synopsis: Build with debug info enabled.
	:since: 1.22
	:default: False
	If the compiler (e.g., GHC 7.10 and later) supports outputting OS
	native debug info (e.g., DWARF), setting ``debug-info: True`` will
	instruct it to do so. See the GHC wiki page on :ghc-wiki:`DWARF`
	for more information about this feature.
	(This field also accepts numeric syntax, but until GHC 8.2 this didn't
	do anything.)
	The command line variant of this flag is ``--enable-debug-info`` and
	``--disable-debug-info``.