servo: Merge #6496 - CGImports must consider special operations to ge…

…nerate required 'use' items (from mukilan:fix_import_codegen); r=Ms2ger

Source-Repo: https://github.com/servo/servo
Source-Revision: b7923547a77a2d887805ba67f688d297e34647c1

servo/components/script/dom/bindings/codegen/CodegenRust.py

@@ -1645,6 +1645,9 @@ def getIdentifier(t):
             if constructor:
                 members += [constructor]
 
+            if d.proxy:
+                members += [o for o in d.operations.values() if o]
+
             for m in members:
                 if m.isMethod():
                     types += relatedTypesForSignatures(m)