Rename missing-pat-syn-sigs to missing-pat-syn-signatures

compiler/main/DynFlags.hs

@@ -3223,7 +3223,7 @@ wWarningFlagsDeps = [
   flagSpec "unused-type-patterns"        Opt_WarnUnusedTypePatterns,
   flagSpec "warnings-deprecations"       Opt_WarnWarningsDeprecations,
   flagSpec "wrong-do-bind"               Opt_WarnWrongDoBind,
-  flagSpec "missing-pat-syn-sigs"        Opt_WarnMissingPatSynSigs,
+  flagSpec "missing-pat-syn-signatures"  Opt_WarnMissingPatSynSigs,
   flagSpec "unrecognised-warning-flags"  Opt_WarnUnrecognisedWarningFlags ]
 
 -- | These @-\<blah\>@ flags can all be reversed with @-no-\<blah\>@

docs/users_guide/8.0.1-notes.rst

@@ -268,7 +268,7 @@ Compiler
    warnings makes sure the definition of ``Semigroup`` as a superclass of
    ``Monoid`` does not break any code.
 
--  Added the :ghc-flag:`-Wmissing-pat-syn-sigs` flag. When enabled, this will issue
+-  Added the :ghc-flag:`-Wmissing-pat-syn-signatures` flag. When enabled, this will issue
    a warning when a pattern synonym definition doesn't have a type signature.
    It is turned off by default but enabled by :ghc-flag:`-Wall`.
 

docs/users_guide/using-warnings.rst

@@ -618,13 +618,13 @@ of ``-W(no-)*``.
     about any polymorphic local bindings. As part of the warning GHC
     also reports the inferred type. The option is off by default.
 
-.. ghc-flag:: -Wmissing-pat-syn-sigs
+.. ghc-flag:: -Wmissing-pat-syn-signatures
 
     .. index::
          single: type signatures, missing, pattern synonyms
 
     If you would like GHC to check that every pattern synonym has a type
-    signature, use the :ghc-flag:`-Wmissing-pat-syn-sigs` option. If this option is
+    signature, use the :ghc-flag:`-Wmissing-pat-syn-signatures` option. If this option is
     used in conjunction with :ghc-flag:`-Wmissing-exported-sigs` then only
     exported pattern synonyms must have a type signature. GHC also reports the
     inferred type. This option is off by default.

testsuite/tests/patsyn/should_fail/T11053.hs

 {-# LANGUAGE PatternSynonyms #-}
--- turn on with -fwarn-missing-pat-syn-sigs
+-- turn on with -fwarn-missing-pat-syn-signatures
 
 module Foo where
 

testsuite/tests/patsyn/should_fail/all.T

@@ -26,6 +26,6 @@ test('poly-export-fail2', expect_broken(10653), compile_fail, [''])
 test('export-super-class-fail', expect_broken(10653), compile_fail, [''])
 test('export-type-synonym', normal, compile_fail, [''])
 test('export-ps-rec-sel', normal, compile_fail, [''])
-test('T11053', normal, compile, ['-fwarn-missing-pat-syn-sigs'])
+test('T11053', normal, compile, ['-fwarn-missing-pat-syn-signatures'])
 test('T10426', normal, compile_fail, [''])
 test('T11265', normal, compile_fail, [''])