MyPy: Add the check-untyped-defs option for mypy. (#629)

* Add the ability to specify `check-untyped-defs` in the
  options section for mypy.

Signed-off-by: G <px9e@gmx.fr>
Co-authored-by: G <px9e@gmx.fr>

docs/profiles.rst

@@ -397,6 +397,9 @@ The available options are:
 | mypy           | use-dmypy              | Use mypy daemon (mypy server) for faster     |
 |                |                        | checks                                       |
 +----------------+------------------------+----------------------------------------------+
+| mypy           | check-untyped-defs     |Type check the interior of functions without  |
+|                |                        |type annotations                              |
++----------------+------------------------+----------------------------------------------+
 | bandit         | config                 | configuration filename                       |
 +----------------+------------------------+----------------------------------------------+
 | bandit         | profile                | profile to use                               |

prospector/tools/mypy/__init__.py

@@ -21,6 +21,7 @@
     "python-2-mode",
     "python-version",
     "namespace-packages",
+    "check-untyped-defs",
 ]
 
 
@@ -90,6 +91,7 @@ def configure(self, prospector_config, _):
         python_version = options.get("python-version", None)
         strict_optional = options.get("strict-optional", False)
         namespace_packages = options.get("namespace-packages", False)
+        check_untyped_defs = options.get("check-untyped-defs", False)
 
         self.options.append(f"--follow-imports={follow_imports}")
 
@@ -117,6 +119,9 @@ def configure(self, prospector_config, _):
         if namespace_packages:
             self.options.append("--namespace-packages")
 
+        if check_untyped_defs:
+            self.options.append("--check-untyped-defs")
+
         for list_option in LIST_OPTIONS:
             for entry in options.get(list_option, []):
                 self.options.append(f"--{list_option}-{entry}")