stubtest: test against 3.11

Author: hauntsaninja

.github/workflows/daily.yml

@@ -21,7 +21,7 @@ jobs:
       matrix:
         # macos-11 does not have tcl/tk installed, needed for stubtesting tkinter
         os: ["ubuntu-latest", "windows-latest", "macos-10.15"]
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11-dev"]
       fail-fast: false
 
     steps:

.github/workflows/tests.yml

@@ -96,7 +96,7 @@ jobs:
       matrix:
         # macos-11 does not have tcl/tk installed, needed for stubtesting tkinter
         os: ["ubuntu-latest", "windows-latest", "macos-10.15"]
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11-dev"]
       fail-fast: false
 
     steps:

tests/stubtest_allowlists/py310.txt

@@ -150,6 +150,8 @@ distutils.dist.DistributionMetadata.set_keywords
 distutils.dist.DistributionMetadata.set_platforms
 distutils.util.get_host_platform
 functools.partial.__vectorcalloffset__  # undocumented implementation detail
+inspect.Signature.from_builtin  # Removed in 3.11, can add if someone needs this
+inspect.Signature.from_function  # Removed in 3.11, can add if someone needs this
 multiprocessing.managers.SharedMemoryServer.create
 multiprocessing.managers.SharedMemoryServer.list_segments
 multiprocessing.managers.SharedMemoryServer.public
@@ -163,3 +165,15 @@ unicodedata.UCD.is_normalized
 xml.parsers.expat.XMLParserType.SkippedEntityHandler
 xml.parsers.expat.XMLParserType.intern
 xml.sax.handler.LexicalHandler
+
+# Side effects from module initialization
+_compat_pickle.excname
+email.contentmanager.maintype
+email.contentmanager.subtype
+inspect.k
+inspect.mod_dict
+inspect.v
+json.encoder.i
+lib2to3.pgen2.grammar.line
+lib2to3.pgen2.grammar.name
+lib2to3.pgen2.grammar.op