PY-49946: Support 'kw_only' in @dataclass args and dataclasses.field() args

GitOrigin-RevId: fe6f32a2cb8fa65b122968e1e9cf9d2126f92398

python/testData/paramInfo/InitializingDataclassKwOnlyOnClassOverridingHierarchy.py

@@ -0,0 +1,31 @@
+from dataclasses import dataclass
+
+@dataclass(kw_only=True)
+class Base1:
+    a: int
+
+@dataclass
+class Derived1(Base1):
+    a: int
+
+Derived1(<arg1>)
+
+@dataclass
+class Base2:
+    a: int
+
+@dataclass(kw_only=True)
+class Derived2(Base2):
+    a: int
+
+Derived2(<arg2>)
+
+@dataclass(kw_only=True)
+class Base3:
+    a: int
+
+@dataclass(kw_only=True)
+class Derived3(Base3):
+    a: int
+
+Derived3(<arg3>)