test: some LinearProblem tests are no longer broken

Author: AayushSabharwal

test/linearproblem.jl

@@ -35,8 +35,7 @@ ps = [p => A, q => b]
     @test prob.ps[p * q] ≈ A * b
 
     sol = solve(prob)
-    # https://github.com/SciML/LinearSolve.jl/issues/532
-    @test_broken SciMLBase.successful_retcode(sol)
+    @test SciMLBase.successful_retcode(sol)
     @test prob.A * sol.u - prob.b≈zeros(3) atol=1e-10
 
     A2 = rand(3, 3)
@@ -73,8 +72,7 @@ ps = [p => A, q => b]
         @test prob3.ps[p * q] ≈ A * b
 
         sol = solve(prob3)
-        # https://github.com/SciML/LinearSolve.jl/issues/532
-        @test_broken SciMLBase.successful_retcode(sol)
+        @test SciMLBase.successful_retcode(sol)
         @test prob3.A * sol.u - prob3.b≈zeros(3) atol=1e-10
     end
 end