Add test for vec<vec<T>> as a return value.

Bug: 31955917

Test: hidl_test
Change-Id: I9ae7f9b04126261210cb4621266676727877d92f

parent 67f70035

tests/foo/1.0/IFoo.hal

+2 −0

Original line number	Diff line number	Diff line
		@@ -97,4 +97,6 @@ interface IFoo {
		transpose2(ThreeStrings[5] in) generates (FiveStrings[3] out);

		sendVec(vec<uint8_t> data) generates (vec<uint8_t> data);

		sendVecVec() generates (vec<vec<uint8_t>> vecvec);
		};