move passing stage1 compile error tests to stage2

test/cases/compile_errors/nested_vectors.zig

@@ -0,0 +1,13 @@
+export fn entry() void {
+    const V1 = @import("std").meta.Vector(4, u8);
+    const V2 = @Type(.{ .Vector = .{ .len = 4, .child = V1 } });
+    var v: V2 = undefined;
+    _ = v;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :3:16: error: expected integer, float, bool, or pointer for the vector element type; found '@Vector(4, u8)'
+