tests: blacklist a handful of test with `rhg` or `chg`

The use of `alias` to enforce `chg` and `rhg` means we are actually using a mix
of `rhg`/`chg` and `hg` when calling `hg` in the test. Fixing this breaks
various tests. This would be a large detour to fix that. I am disabling
them for now with an appropriate comment.

We would hopefully get back to them by the 5.8 release.

Differential Revision: https://phab.mercurial-scm.org/D11052

tests/test-commandserver.t

@@ -1,3 +1,13 b''
+#require no-rhg no-chg
+
+XXX-RHG this test hangs if `hg` is really `rhg`. This was hidden by the use of
+`alias hg=rhg` by run-tests.py. With such alias removed, this test is revealed
+buggy. This need to be resolved sooner than later.
+
+XXX-CHG this test hangs if `hg` is really `chg`. This was hidden by the use of
+`alias hg=chg` by run-tests.py. With such alias removed, this test is revealed
+buggy. This need to be resolved sooner than later.
+
 #if windows
   $ PYTHONPATH="$TESTDIR/../contrib;$PYTHONPATH"
 #else

tests/test-infinitepush-bundlestore.t

@@ -1,4 +1,11 b''
-#require no-reposimplestore
+#require no-reposimplestore no-chg
+
+XXX-CHG this test hangs if `hg` is really `chg`. This was hidden by the use of
+`alias hg=chg` by run-tests.py. With such alias removed, this test is revealed
+buggy. This need to be resolved sooner than later.
+
+
+Testing infinipush extension and the confi options provided by it
 
 Create an ondisk bundlestore in .hg/scratchbranches
   $ . "$TESTDIR/library-infinitepush.sh"

tests/test-infinitepush.t

@@ -1,4 +1,9 b''
-#require no-reposimplestore
+#require no-reposimplestore no-chg
+
+XXX-CHG this test hangs if `hg` is really `chg`. This was hidden by the use of
+`alias hg=chg` by run-tests.py. With such alias removed, this test is revealed
+buggy. This need to be resolved sooner than later.
+
 
 Testing infinipush extension and the confi options provided by it
 

tests/test-nointerrupt.t

@@ -1,4 +1,8 b''
-#require no-windows
+#require no-windows no-rhg
+
+XXX-RHG this test hangs if `hg` is really `rhg`. This was hidden by the use of
+`alias hg=rhg` by run-tests.py. With such alias removed, this test is revealed
+buggy. This need to be resolved sooner than later.
 
 Dummy extension simulating unsafe long running command
   $ cat > sleepext.py <<EOF

tests/test-ssh-repoerror.t

@@ -1,4 +1,8 b''
-#require unix-permissions no-root
+#require unix-permissions no-root no-windows no-rhg
+
+XXX-RHG this test hangs if `hg` is really `rhg`. This was hidden by the use of
+`alias hg=rhg` by run-tests.py. With such alias removed, this test is revealed
+buggy. This need to be resolved sooner than later.
 
 initial setup