pytestCheckHook: support __structuredAttrs

Add flag pytestFlags as the new, conforming interface
replacing pytestFlagsArray.

Stop Bash-expanding disabledTests and disabledTestPaths.

Handle disabledTestPaths with `pytest --ignore-glob <path>`
to keep globbing support.
Check if each path glob matches at least one path
using the `glob` module from the Python standard library.

Also make buildPythonPackage and buildPythonApplication
stop escaping the elements of disabledTests and disabledTestPaths.

pkgs/development/interpreters/python/mk-python-derivation.nix

@@ -106,6 +106,7 @@ let
     "format"
     "disabledTestPaths"
     "disabledTests"
+    "pytestFlags"
     "pytestFlagsArray"
     "unittestFlagsArray"
     "outputs"
@@ -434,13 +435,14 @@ let
       }
       // optionalAttrs (attrs.doCheck or true) (
         optionalAttrs (disabledTestPaths != [ ]) {
-          disabledTestPaths = escapeShellArgs disabledTestPaths;
+          disabledTestPaths = disabledTestPaths;
         }
         // optionalAttrs (attrs ? disabledTests) {
-          # `escapeShellArgs` should be used as well as `disabledTestPaths`,
-          # but some packages rely on existing raw strings.
           disabledTests = attrs.disabledTests;
         }
+        // optionalAttrs (attrs ? pytestFlags) {
+          pytestFlags = attrs.pytestFlags;
+        }
         // optionalAttrs (attrs ? pytestFlagsArray) {
           pytestFlagsArray = attrs.pytestFlagsArray;
         }