PY-19085 Fixed: Unresolved attribute reference 'fullmatch' for class '__Regex'

Add re.fullmatch and __Regex.fullmatch to skeletons

python/helpers/python-skeletons/re.py

@@ -34,6 +34,17 @@ def match(pattern, string, flags=0):
     pass
 
 
+def fullmatch(pattern, string, flags=0):
+    """Matches the whole string.
+
+    :type pattern: bytes | unicode | __Regex
+    :type string: T <= bytes | unicode
+    :type flags: int
+    :rtype: __Match[T] | None
+    """
+    pass
+
+
 def split(pattern, string, maxsplit=0, flags=0):
     """Split string by the occurrences of pattern.
 
@@ -144,6 +155,16 @@ class __Regex(object):
         """
         pass
 
+    def fullmatch(self, string, pos=0, endpos=-1):
+        """Matches the whole string.
+
+        :type string: T <= bytes | unicode
+        :type pos: int
+        :type endpos: int
+        :rtype: __Match[T] | None
+        """
+        pass
+
     def split(self, string, maxsplit=0):
         """Split string by the occurrences of pattern.
 

python/testData/inspections/PyUnresolvedReferencesInspection3K/reAndRegexFullmatch.py

@@ -0,0 +1,4 @@
+import re
+
+a = re.compile('').fullmatch()
+b = re.fullmatch('', '')

python/testSrc/com/jetbrains/python/inspections/Py3UnresolvedReferencesInspectionTest.java

@@ -141,4 +141,9 @@ public class Py3UnresolvedReferencesInspectionTest extends PyTestCase {
   public void testDunderClass() {
     doTest();
   }
+
+  // PY-19085
+  public void testReAndRegexFullmatch() {
+    doTest();
+  }
 }