warnings: mixed-oneway can be suppressed at method level.

mixed-oneway is checked at interface level, so method level suppression
didn't work. But now, we skip methods annotated
@SuppressWarnings(mixed-oneway) when checking.

  interface IFoo {
     void foo();
     @SuppressWarnings(value={"mixed-oneway"})
     oneway void bar();
  }

Bug: n/a
Test: aidl_unittests
Change-Id: Ife0d1c2e53f7cdfbd60d96865e0a4ad4f105c8a8
diff --git a/aidl_language.h b/aidl_language.h
index 28f94ee..4f19261 100644
--- a/aidl_language.h
+++ b/aidl_language.h
@@ -1161,7 +1161,7 @@
 class AidlInterface final : public AidlDefinedType {
  public:
   AidlInterface(const AidlLocation& location, const std::string& name, const Comments& comments,
-                bool oneway_, const std::string& package,
+                bool oneway, const std::string& package,
                 std::vector<std::unique_ptr<AidlMember>>* members);
   virtual ~AidlInterface() = default;