Type annotate some hookspecs & impls

Annotate some "easy" arguments of hooks that repeat in a lot of internal
plugins.

Not all of the arguments are annotated fully for now.

1 files changed, 7 insertions, 4 deletions

diff --git a/src/_pytest/debugging.py b/src/_pytest/debugging.py
index 26c3095dc..0085d3197 100644
--- a/src/_pytest/debugging.py
+++ b/src/_pytest/debugging.py
@@ -4,8 +4,11 @@ import functools
 import sys
 
 from _pytest import outcomes
+from _pytest.config import Config
 from _pytest.config import ConftestImportFailure
 from _pytest.config import hookimpl
+from _pytest.config import PytestPluginManager
+from _pytest.config.argparsing import Parser
 from _pytest.config.exceptions import UsageError
 
 
@@ -20,7 +23,7 @@ def _validate_usepdb_cls(value):
     return (modname, classname)
 
 
-def pytest_addoption(parser):
+def pytest_addoption(parser: Parser) -> None:
     group = parser.getgroup("general")
     group._addoption(
         "--pdb",
@@ -44,7 +47,7 @@ def pytest_addoption(parser):
     )
 
 
-def pytest_configure(config):
+def pytest_configure(config: Config) -> None:
     import pdb
 
     if config.getvalue("trace"):
@@ -74,8 +77,8 @@ def pytest_configure(config):
 class pytestPDB:
     """ Pseudo PDB that defers to the real pdb. """
 
-    _pluginmanager = None
-    _config = None
+    _pluginmanager = None  # type: PytestPluginManager
+    _config = None  # type: Config
     _saved = []  # type: list
     _recursive_debug = 0
     _wrapped_pdb_cls = None