Add tracking allocator to test runner. #1809

test/unit/regression/liveness_any.c3

@@ -17,4 +17,6 @@ fn void reflect_test() @test
 {
 	TestProto b = mem::alloc(Test);
 	b.tesT();
+	defer free(b);
+
 }

test/unit/regression/lvalue_handling.c3

@@ -8,6 +8,8 @@ def IntList = List(<Foo>);
 fn void subscript_overload() @test
 {
 	IntList x;
+	defer x.free();
+
 	x.push({ 3 });
 	int* a = &x[0].a;
 	assert(*a == 3);