Break also comment-like sequences in string literals.

Author: serhiy-storchaka

Lib/test/test_clinic.py

@@ -4624,6 +4624,7 @@ def test_c_bytes_repr(self):
         self.assertEqual(c_bytes_repr(b'\\'), r'"\\"')
         self.assertEqual(c_bytes_repr(b'??/'), r'"?\?/"')
         self.assertEqual(c_bytes_repr(b'???/'), r'"?\?\?/"')
+        self.assertEqual(c_bytes_repr(b'/*****/ /*/ */*'), r'"/\*****\/ /\*\/ *\/\*"')
         self.assertEqual(c_bytes_repr(b'\xa0'), r'"\240"')
         self.assertEqual(c_bytes_repr(b'\xff'), r'"\377"')
 
@@ -4638,6 +4639,7 @@ def test_c_str_repr(self):
         self.assertEqual(c_str_repr('\\'), r'"\\"')
         self.assertEqual(c_str_repr('??/'), r'"?\?/"')
         self.assertEqual(c_str_repr('???/'), r'"?\?\?/"')
+        self.assertEqual(c_str_repr('/*****/ /*/ */*'), r'"/\*****\/ /\*\/ *\/\*"')
         self.assertEqual(c_str_repr('\xa0'), r'"\u00a0"')
         self.assertEqual(c_str_repr('\xff'), r'"\u00ff"')
         self.assertEqual(c_str_repr('\u20ac'), r'"\u20ac"')

Tools/clinic/libclinic/formatting.py

@@ -56,6 +56,10 @@ def _break_trigraphs(s: str) -> str:
     if '??' in s:
         s = s.replace('??', r'?\?')
         s = s.replace(r'\??', r'\?\?')
+    # Also Argument Clinic does not like comment-like sequences
+    # in string literals.
+    s = s.replace(r'/*', r'/\*')
+    s = s.replace(r'*/', r'*\/')
     return s
 
 def c_bytes_repr(data: bytes) -> str: