More stringently verify expected alignment of fields in hidl compound types.

Bug: 33846034
Test: make
Change-Id: Iaadddeabe04e0c721aa9398a1bb748fd6adcac51
diff --git a/VectorType.h b/VectorType.h
index c267ba9..73ce814 100644
--- a/VectorType.h
+++ b/VectorType.h
@@ -121,6 +121,7 @@
     bool resultNeedsDeref() const override;
 
     bool isJavaCompatible() const override;
+    bool containsPointer() const override;
 
     void getAlignmentAndSize(size_t *align, size_t *size) const override;