hghave: split apart testing for the curses module and `tic` executable

ef771d329961 skipped the check for the `tic` executable, because the curses
module alone on Windows is enough to pass the `test-*-curses.t` tests.  However,
`test-status-color.t` uses this same check and explicitly invoked the
executable, which fails on Windows.  From the cursory searching I did, curses on
unix requires `tic`, which I assume is why they were tied together in the first
place.  So this continues to require both to get past the curses guards on non
Windows platforms.

Differential Revision: https://phab.mercurial-scm.org/D9814

tests/hghave.py

@@ -702,8 +702,8 b' def has_test_repo():'
     return os.path.isdir(os.path.join(t, "..", ".hg"))
 
 
-@check("tic", "terminfo compiler and curses module")
-def has_tic():
+@check("curses", "terminfo compiler and curses module")
+def has_curses():
     try:
         import curses
 
@@ -714,11 +714,17 b' def has_tic():'
         if os.name == 'nt':
             return True
 
-        return matchoutput('test -x "`which tic`"', br'')
+        return has_tic()
+
     except (ImportError, AttributeError):
         return False
 
 
+@check("tic", "terminfo compiler")
+def has_tic():
+    return matchoutput('test -x "`which tic`"', br'')
+
+
 @check("xz", "xz compression utility")
 def has_xz():
     # When Windows invokes a subprocess in shell mode, it uses `cmd.exe`, which

tests/test-commit-interactive-curses.t

@@ -1,4 +1,4 b''
-#require tic
+#require curses
 
 Set up a repo
 

tests/test-revert-interactive-curses.t

@@ -1,4 +1,4 b''
-#require tic
+#require curses
 
 Revert interactive tests with the Curses interface