[python] dataclass_transform: use the annotated class as a resolve anchor for resolving the field specifiers

(cherry picked from commit f15a07836e7aeac7c46b489b4742e8248a0e6ef4)

GitOrigin-RevId: edf8399741cc5d62ba2fb04f9314eb620f83abae

python/python-psi-impl/src/com/jetbrains/python/codeInsight/PyDataclasses.kt

@@ -566,7 +566,7 @@ private fun resolveDataclassParameters(
         
         if (dataclassTransformStub != null) {
           val resolvedFieldSpecifiers = dataclassTransformStub.fieldSpecifiers
-            .flatMap { PyResolveUtil.resolveQualifiedNameInScope(it, ScopeUtil.getScopeOwner(dataclassTransformDecorator)!!, context) }
+            .flatMap { PyResolveUtil.resolveQualifiedNameInScope(it, ScopeUtil.getScopeOwner(pyClass)!!, context) }
             .filterIsInstance<PyQualifiedNameOwner>()
             .mapNotNull { it.qualifiedName }
             .map { QualifiedName.fromDottedString(it) }

python/testData/inspections/PyDataclassInspection/DataclassTransformFieldsOrder/a.py

@@ -1,8 +1,9 @@
 import dataclasses
 from typing import ClassVar
 
-from decorator import my_dataclass, my_field, MyField
+from decorator import my_dataclass, my_field, MyField, registry
 
+reg = registry()
 
 @my_dataclass()
 class A1:
@@ -106,3 +107,9 @@ class D1:
 class E1:
     foo = "bar"  # <- has no type annotation, so doesn't count.
     baz: str
+
+# see https://docs.sqlalchemy.org/en/20/orm/dataclasses.html
+@reg.mapped_as_dataclass
+class B5:
+    <error descr="Fields with a default value must come after any fields without a default.">a</error>: int = MyField(default_factory=int)
+    b: int = MyField()

python/testData/inspections/PyDataclassInspection/DataclassTransformFieldsOrder/decorator.py

@@ -11,6 +11,12 @@ class MyField:
     def __init__(self, **kwargs):
         ...
 
+class registry:
+    @dataclass_transform(field_specifiers=(my_field, MyField,))
+    def mapped_as_dataclass(**kwargs) -> Callable[[type[T]], type[T]]:
+        ...
+
+
 
 @dataclass_transform(field_specifiers=(my_field, MyField,))
 def my_dataclass(**kwargs) -> Callable[[type[T]], type[T]]: