Recursively parse imported .hal files and perform global type lookup.
diff --git a/Type.cpp b/Type.cpp
index fd64343..5251f9d 100644
--- a/Type.cpp
+++ b/Type.cpp
@@ -5,5 +5,9 @@
 Type::Type() {}
 Type::~Type() {}
 
+bool Type::isScope() const {
+    return false;
+}
+
 }  // namespace android