ghc-parser: Add GHC 7.10 parser

Unlike the previous GHC releases, now we can simply reexport the
parsers

ghc-parser/ghc-parser.cabal

@@ -38,6 +38,9 @@ library
     if impl(ghc >= 7.8) && impl(ghc < 7.8.3)
       hs-source-dirs:    generic-src src-7.8.2
     else
-      hs-source-dirs:    generic-src src-7.8.3
+      if impl(ghc < 7.10)
+        hs-source-dirs:    generic-src src-7.8.3
+      else
+        hs-source-dirs:    generic-src src-7.10
 
   default-language:    Haskell2010

ghc-parser/src-7.10/Language/Haskell/GHC/HappyParser.hs

+module Language.Haskell.GHC.HappyParser
+    ( fullStatement
+    , fullImport
+    , fullDeclaration
+    , fullExpression
+    , fullTypeSignature
+    , fullModule
+    ) where
+
+import Parser
+import SrcLoc
+
+-- compiler/hsSyn
+import HsSyn
+
+-- compiler/utils
+import OrdList
+
+-- compiler/parser
+import RdrHsSyn
+import Lexer
+
+-- compiler/basicTypes
+import RdrName
+
+fullStatement :: P (Maybe (LStmt RdrName (LHsExpr RdrName)))
+fullStatement = parseStmt
+
+fullImport :: P (LImportDecl RdrName)
+fullImport = parseImport
+
+fullDeclaration :: P (OrdList (LHsDecl RdrName))
+fullDeclaration = parseDeclaration
+
+fullExpression :: P (LHsExpr RdrName)
+fullExpression = parseExpression
+
+fullTypeSignature :: P (Located (OrdList (LHsDecl RdrName)))
+fullTypeSignature = parseTypeSignature
+
+fullModule :: P (Located (HsModule RdrName))
+fullModule = parseModule