Bug 1521732 - Part 4: fix SM rust binging test. r=fitzgen

StackGCVector and RootedVector are partial template specialization and cause
cargo test failure. Bypass the classes by adding them to OPAQUE_TYPES.

Depends on D23184

Differential Revision: https://phabricator.services.mozilla.com/D23185

--HG--
extra : moz-landing-system : lando

js/rust/build.rs

@@ -473,8 +473,10 @@ const OPAQUE_TYPES: &'static [&'static str] = &[
     "JS::ReadOnlyCompileOptions",
     "mozilla::BufferList",
     "mozilla::UniquePtr.*",
+    "JS::RootedVector",
     "JS::Rooted<JS::Auto.*Vector.*>",
-    "JS::Auto.*Vector"
+    "JS::Auto.*Vector",
+    "JS::StackGCVector"
 ];
 
 /// Types for which we should NEVER generate bindings, even if it is used within