Bump template-haskell version to 2.16.0.0

Commit cef80c0b debuted a breaking
change to `template-haskell`, so in order to guard against it
properly with CPP, we need to bump the `template-haskell` version
number accordingly.

compiler/ghc.cabal.in

@@ -74,7 +74,7 @@ Library
                    containers >= 0.5 && < 0.7,
                    array      >= 0.1 && < 0.6,
                    filepath   >= 1   && < 1.5,
-                   template-haskell == 2.15.*,
+                   template-haskell == 2.16.*,
                    hpc        == 0.6.*,
                    transformers == 0.5.*,
                    ghc-boot   == @ProjectVersionMunged@,

libraries/ghci/ghci.cabal.in

@@ -92,7 +92,7 @@ library
         ghc-boot         == @ProjectVersionMunged@,
         ghc-boot-th      == @ProjectVersionMunged@,
         ghc-heap         == @ProjectVersionMunged@,
-        template-haskell == 2.15.*,
+        template-haskell == 2.16.*,
         transformers     == 0.5.*
 
     if !os(windows)

libraries/template-haskell/template-haskell.cabal.in

@@ -3,7 +3,7 @@
 -- template-haskell.cabal.
 
 name:           template-haskell
-version:        2.15.0.0
+version:        2.16.0.0
 -- NOTE: Don't forget to update ./changelog.md
 license:        BSD3
 license-file:   LICENSE

testsuite/tests/th/TH_Roles2.stderr

@@ -4,7 +4,7 @@ TYPE CONSTRUCTORS
 Dependent modules: []
 Dependent packages: [array-0.5.2.0, base-4.12.0.0, deepseq-1.4.4.0,
                      ghc-boot-th-8.7, ghc-prim-0.6.1, integer-gmp-1.0.2.0,
-                     pretty-1.1.3.6, template-haskell-2.15.0.0]
+                     pretty-1.1.3.6, template-haskell-2.16.0.0]
 
 ==================== Typechecker ====================
 TH_Roles2.$tcT