Regenerate all WebIDLs when one of them changes

WebIDL files have dependencies between each other, but cmake doesn't have any
information about them. This can cause it to not update all the changed bindings
when switching branches.

components/script/CMakeLists.txt

@@ -106,7 +106,7 @@ foreach(binding IN LISTS bindings)
                    .
                    Bindings/${binding}Binding
                    ${webidls_src}/${binding}.webidl
-    DEPENDS Bindings ${bindinggen_deps} ${webidls_src}/${binding}.webidl ParserResults
+    DEPENDS Bindings ${bindinggen_deps} ${webidls} ParserResults
     VERBATIM
     )
   add_custom_target(${binding} DEPENDS Bindings/${binding}Binding.rs)