[clang] [libclang/python] Add equality comparison operators for File (PR #130383)

[Vlad Serebrennikov via cfe-commits]

================
@@ -16,3 +17,30 @@ def test_file(self):
         self.assertEqual(str(file), "t.c")
         self.assertEqual(file.name, "t.c")
         self.assertEqual(repr(file), "<File: t.c>")
+
+    def test_file_eq(self):
+        path = os.path.join(inputs_dir, "hello.cpp")
+        header_path = os.path.join(inputs_dir, "header3.h")
+        tu = TranslationUnit.from_source(path)
+        file1 = File.from_name(tu, path)
+        file2 = File.from_name(tu, header_path)
+        file2_2 = File.from_name(tu, header_path)
+
+        self.assertEqual(file1, file1)
+        self.assertEqual(file2, file2_2)
+        self.assertNotEqual(file1, file2)
+        self.assertNotEqual(file1, "t.c")
+
+    # FIXME: this test shouldn't pass
+    def test_file_eq_failing(self):
+        index = Index.create()
+        tu = index.parse(
+            "t.c",
+            unsaved_files=[
+                ("t.c", "int a = 729;"),
+                ("s.c", "int a = 729;"),
+            ],
+        )
+        file1 = File.from_name(tu, "t.c")
+        file2 = File.from_name(tu, "s.c")
+        self.assertEqual(file1, file2)  # These files are not supposed to be equal
----------------
Endilll wrote:

```suggestion
        # FIXME: These files are not supposed to be equal
        self.assertEqual(file1, file2)  
```

https://github.com/llvm/llvm-project/pull/130383