Fix #line pragmas in nested comments

When parsing a nested comment or nested doc comment in the lexer, if we
see a line starting with '#' we attempt to parse a #line pragma. This
fixes how ghc handles output of the C preproccesor (-cpp flag) when the
original source has C comments or pragmas inside haskell comments.

Updates haddock submodule.

Test Plan: ./validate

Reviewers: bgamari

Reviewed By: bgamari

Subscribers: rwbarton, thomie, carter

GHC Trac Issues: #314

Differential Revision: https://phabricator.haskell.org/D4934

1 files changed, 0 insertions, 0 deletions

diff --git a/utils/haddock b/utils/haddock
-Subproject a264b6b3e41dd42946110afcf5000341e5fb3a6
+Subproject 488aa22f393c0addb4c0e0b63cfe0aaea32b85d