Recognize inline namespaces using clang's dedicated API for that

Author: dtolnay

bindgen-tests/tests/expectations/tests/inline_namespace_macro.rs

@@ -970,6 +970,11 @@ impl Cursor {
             })
         }
     }
+
+    /// Is this cursor's referent a namespace that is inline?
+    pub(crate) fn is_inline_namespace(&self) -> bool {
+        unsafe { clang_Cursor_isInlineNamespace(self.x) != 0 }
+    }
 }
 
 /// A struct that owns the tokenizer result from a given cursor.

bindgen/clang.rs

@@ -2328,6 +2328,10 @@ If you encounter an error missing from this list, please file an issue or a PR!"
             }
         }
 
+        if cursor.is_inline_namespace() {
+            kind = ModuleKind::Inline;
+        }
+
         (module_name, kind)
     }