match: don't print explicitly listed files with wrong case (BC)

On case-insensitive file systems, if file A exists and you try to
remove it (or add, etc.) by specifying a different case, you will see
something like this:

  $ hg rm a
  removing file A

I honestly found this surprising because it seems to me like it was
explicitly listed by the user. Still, there is a comment in the code
describing it, so it is very clearly intentional. The code was added
in baa11dde8c0e (match: add a subclass for dirstate normalizing of the
matched patterns, 2015-04-12).

I'm going to do a lot of refactoring to matchers and the feature
mentioned above is going to get in my way. I'm therefore removing it
for the time being and we can hopefully add it back when I'm done.

mercurial/match.py

@@ -450,19 +450,11 b' class icasefsmatcher(matcher):'
         init(root, cwd, patterns, include, exclude, default, auditor=auditor,
              ctx=ctx, listsubrepos=listsubrepos, badfn=badfn)
 
-        # m.exact(file) must be based off of the actual user input, otherwise
-        # inexact case matches are treated as exact, and not noted without -v.
-        if self._files:
-            roots, dirs = _rootsanddirs(self._kp)
-            self._fileset = set(roots)
-            self._fileset.update(dirs)
-
     def _normalize(self, patterns, default, root, cwd, auditor, warn):
-        self._kp = super(icasefsmatcher, self)._normalize(patterns, default,
-                                                          root, cwd, auditor,
-                                                          warn)
+        kp = super(icasefsmatcher, self)._normalize(patterns, default, root,
+                                                    cwd, auditor, warn)
         kindpats = []
-        for kind, pats, source in self._kp:
+        for kind, pats, source in kp:
             if kind not in ('re', 'relre'):  # regex can't be normalized
                 p = pats
                 pats = self._dsnormalize(pats)

tests/test-add.t

@@ -196,7 +196,6 b" Test that adding a directory doesn't req"
   adding CapsDir1/CapsDir/SubDir/Def.txt (glob)
 
   $ hg forget capsdir1/capsdir/abc.txt
-  removing CapsDir1/CapsDir/AbC.txt (glob)
 
   $ hg forget capsdir1/capsdir
   removing CapsDir1/CapsDir/SubDir/Def.txt (glob)
@@ -232,7 +231,6 b' and OS X'
   +def
 
   $ hg mv CapsDir1/CapsDir/abc.txt CapsDir1/CapsDir/ABC.txt
-  moving CapsDir1/CapsDir/AbC.txt to CapsDir1/CapsDir/ABC.txt (glob)
   $ hg ci -m "case changing rename" CapsDir1/CapsDir/AbC.txt CapsDir1/CapsDir/ABC.txt
 
   $ hg status -A capsdir1/capsdir

tests/test-casefolding.t

@@ -9,7 +9,6 b' test file addition with bad case'
   $ cd repo1
   $ echo a > a
   $ hg add A
-  adding a
   $ hg st
   A a
   $ hg ci -m adda
@@ -71,14 +70,12 b' test changing case of path components'
   A D/c
   $ hg ci -m addc D/c
   $ hg mv d/b d/e
-  moving D/b to D/e (glob)
   $ hg st
   A D/e
   R D/b
   $ hg revert -aq
   $ rm d/e
   $ hg mv d/b D/B
-  moving D/b to D/B (glob)
   $ hg st
   A D/B
   R D/b