Support attr aliases for classes and fields (PY-26354)

python/testData/paramInfo/InitializingAttrs.py

@@ -35,3 +35,18 @@ class B1:
 
 B1(<arg4>)
 
+
+@attr.attrs
+class C1:
+    x = attr.ib()
+    y = attr.attr(default=0)
+
+C1(<arg5>)
+
+
+@attr.attributes
+class C2:
+    x = attr.attr()
+    y = attr.attrib(default="0")
+
+C2(<arg6>)

python/testData/paramInfo/InitializingAttrsUsingPep526.py

@@ -47,4 +47,12 @@ class C1:
     a: typing.ClassVar[int]
     b: int
 
-C1(<arg5>)
+C1(<arg5>)
+
+
+@attr.dataclass
+class D1:
+    x: int
+    y: str = "0"
+
+D1(<arg6>)