PY-82818 PyCharm infers None for dict.get(..., None) if dict key/value types are unknown

GitOrigin-RevId: d12ed4598d91f1ab4824f6e5953e275672027064

python/testSrc/com/jetbrains/python/Py3TypeTest.java

@@ -18,6 +18,37 @@ import java.util.Map;
 public class Py3TypeTest extends PyTestCase {
   public static final String TEST_DIRECTORY = "/types/";
 
+  /** 
+  Overload signatures for dict.get and dict.pop in builtins.pyi differ slightly,
+  dict.get has default value for "default" parameter. This affect the logic of overload resolution.
+  Therefore it makes sense to test both.
+  <p>
+   <pre>{@code
+  @overload
+  def get(self, key: _KT, default: None = None, /) -> _VT | None: ...
+  # mode overloads...
+   }</pre>
+   <p>
+   <pre>{@code
+  @overload
+  def pop(self, key: _KT, /) -> _VT: ...
+  # mode overloads...
+   }</pre>
+   */
+  // PY-82818
+  public void testGetFromDictWithDefaultNoneValue() {
+    doTest("Any | None", """
+             d = {}
+             expr = d.get("abc", None)""");
+  }
+
+  // PY-82818
+  public void testPopFromDictWithDefaultNoneValue() {
+    doTest("Any", """
+             d = {}
+             expr = d.pop("abc", None)""");
+  }
+
   public void testYieldInsideLambda() {
     // Checks that foo is not a generator
     doTest("int", """

python/testSrc/com/jetbrains/python/PyTypeTest.java

@@ -1775,7 +1775,7 @@ public class PyTypeTest extends PyTestCase {
 
   // PY-20409
   public void testGetFromDictWithDefaultNoneValue() {
-    doTest("Optional[Any]",
+    doTest("Any",
            "d = {}\n" +
            "expr = d.get(\"abc\", None)");
   }