Hide warnings from alex/happy sources

compiler/cmm/CmmLex.x

@@ -11,7 +11,7 @@
 -----------------------------------------------------------------------------
 
 {
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -w #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See

compiler/cmm/CmmParse.y

@@ -7,7 +7,7 @@
 -----------------------------------------------------------------------------
 
 {
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -w #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See

compiler/parser/HaddockLex.x

@@ -7,7 +7,7 @@
 --
 
 {
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -w #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See

compiler/parser/HaddockParse.y

 {
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -w #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See

compiler/parser/Lexer.x

@@ -32,7 +32,7 @@
 --       qualified varids.
 
 {
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -w #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See

compiler/parser/Parser.y.pp

@@ -8,7 +8,7 @@
 -- ---------------------------------------------------------------------------
 
 {
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -w #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See

compiler/parser/ParserCore.y

 {
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -w #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See