test: mark appropriate optimization tests as broken

Author: AayushSabharwal

test/optimizationsystem.jl

@@ -98,7 +98,7 @@ end
 
     prob = OptimizationProblem(sys, [x => 0.0, y => 0.0, z => 0.0, a => 1.0, b => 1.0],
         grad = false, hess = false, cons_j = false, cons_h = false)
-    sol = solve(prob, AmplNLWriter.Optimizer(Ipopt_jll.amplexe))
+    @test_broken sol = solve(prob, AmplNLWriter.Optimizer(Ipopt_jll.amplexe))
     @test_skip sol.objective < 1.0
     @test_skip sol.u≈[0.808, -0.064] atol=1e-3
     @test_skip sol[x]^2 + sol[y]^2 ≈ 1.0
@@ -109,9 +109,11 @@ end
     x0 = zeros(2)
     p = [1.0, 100.0]
     f = OptimizationFunction(rosenbrock, Optimization.AutoSymbolics())
-    prob = OptimizationProblem(f, x0, p)
-    sol = solve(prob, Newton())
-    @test sol.u ≈ [1.0, 1.0]
+    @test_broken begin
+        prob = OptimizationProblem(f, x0, p)
+        sol = solve(prob, Newton())
+        @test sol.u ≈ [1.0, 1.0]
+    end
 end
 
 # issue #819