Whitespace-sensitive bang patterns (#1087, #17162)wip/whitespace-and-lookahead

This patch implements a part of GHC Proposal #229 that covers five
operators:

* the bang operator (!)
* the tilde operator (~)
* the at operator (@)
* the dollar operator ($)
* the double dollar operator ($$)

Based on surrounding whitespace, these operators are disambiguated into
bang patterns, lazy patterns, strictness annotations, type
applications, splices, and typed splices.

This patch doesn't cover the (-) operator or the -Woperator-whitespace
warning, which are left as future work.

1 files changed, 0 insertions, 0 deletions

diff --git a/nofib b/nofib
-Subproject a6cbac8fd8c69d85fddfde0a2686607e1ae2294
+Subproject c9fe4e92b88cd052d5fea8b713569d16c05ebf0