PY-57582 dataclasses: field with default value preceding KW_ONLY shows false-positive warning

- support marker field typed with KW_ONLY
- adjust other inspection message

GitOrigin-RevId: 28f30ffcc3400bc719c63eacd76e432a547a1a9c

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

@@ -4,5 +4,5 @@ from mod import Base
 
 
 @dataclasses.dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'Base'">Sub</error>(Base):
-    field_no_default: int
+class Sub(Base):
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'Base'">field_no_default</error>: int

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

@@ -3,8 +3,8 @@ from decorator import my_dataclass
 
 
 @my_dataclass()
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'A1'">B1</error>(A1):
-    y1: str
+class B1(A1):
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'A1'">y1</error>: str
     y2: str = "1"
 
 

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

@@ -54,8 +54,8 @@ class BaseNotKwOnlyDefault:
 
 
 @my_dataclass()
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'BaseNotKwOnlyDefault'">SubNotKwOnly</error>(BaseNotKwOnlyDefault):
-    not_kw_only_no_default: int
+class SubNotKwOnly(BaseNotKwOnlyDefault):
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'BaseNotKwOnlyDefault'">not_kw_only_no_default</error>: int
 
 
 @my_dataclass(kw_only=True)

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

@@ -4,5 +4,5 @@ from mod import Base
 
 
 @dataclasses.dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'Base'">Sub</error>(Base):
-    field_no_default: int
+class Sub(Base):
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'Base'">field_no_default</error>: int

python/testData/inspections/PyDataclassInspection/fieldsOrderInInheritance.py

@@ -7,8 +7,8 @@ class A1:
     x2: int = 1
 
 @dataclasses.dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'A1'">B1</error>(A1):
-    y1: str
+class B1(A1):
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'A1'">y1</error>: str
     y2: str = "1"
 
 @attr.dataclass
@@ -17,8 +17,8 @@ class A2:
     x2: int = 1
 
 @attr.dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'A2'">B2</error>(A2):
-    y1: str
+class B2(A2):
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'A2'">y1</error>: str
     y2: str = "1"
 
 @dataclasses.dataclass

python/testData/inspections/PyDataclassInspection/fieldsOrderKwOnly.py

@@ -0,0 +1,28 @@
+from dataclasses import dataclass, KW_ONLY
+from typing import NamedTuple
+
+
+@dataclass
+class A1:
+    bar1: int = 1   # no error
+    _: KW_ONLY
+    bar2: int
+
+
+@dataclass
+class Base:
+    x: int = 0
+
+
+@dataclass
+class Child1(Base):
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'Base'">y</error>: int
+    _: KW_ONLY
+    z: int = 1
+
+
+@dataclass
+class Child2(Base):
+    _: KW_ONLY
+    y: int         # no error
+    z: int = 1

python/testData/inspections/PyDataclassInspection/fieldsOrderOverridden.py

@@ -12,16 +12,16 @@ class A1(B):
     b: int
 
 @dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">A2</error>(B):
+class A2(B):
     a: int
-    c: int
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">c</error>: int
     b: int
 
 @dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">A3</error>(B):
+class A3(B):
     a: int
     b: int
-    c: int
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">c</error>: int
 
 @dataclass
 class A4(B):
@@ -30,25 +30,25 @@ class A4(B):
     c: int = 1
 
 @dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">A5</error>(B):
+class A5(B):
     a: int
     <error descr="Fields with a default value must come after any fields without a default.">c</error>: int = 1
     <error descr="Fields with a default value must come after any fields without a default.">d</error>: int = 1
     b: int
-    e: int
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">e</error>: int
 
 @dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">A6</error>(B):
+class A6(B):
     a: int
     <error descr="Fields with a default value must come after any fields without a default.">c</error>: int = 1
-    d: int
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">d</error>: int
     e: int
     b: int = 1
 
 @dataclass
-class <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">A7</error>(B):
+class A7(B):
     a: int
     b: int
     <error descr="Fields with a default value must come after any fields without a default.">c</error>: int = 1
     <error descr="Fields with a default value must come after any fields without a default.">d</error>: int = 1
-    e: int
+    <error descr="Non-default argument(s) follows default argument(s) defined in 'B'">e</error>: int

python/testData/inspections/PyNamedTupleInspection/typingNTFieldsOrderKWOnly.py

@@ -0,0 +1,9 @@
+from typing import NamedTuple
+from dataclasses import KW_ONLY
+
+
+class NoDataclass(NamedTuple):
+    y: int
+    _: KW_ONLY    # no effect
+    <error descr="Fields with a default value must come after any fields without a default.">z</error>: int = 1
+    bar2: int