tests: add comments on broken tests

... explaining what was broken at the time they were marked as broken.
That is helpful when trying to later on figure out if they are still
broken or not.

tst/standard/ClassicalNormalizerMatrixGroups.tst

@@ -50,8 +50,8 @@ gap> TestOrthogonalInSp := function(epsilon, n, q)
 >   CheckSize(G);
 > end;;
 #@if IsBound(CLASSICAL_MAXIMALS_RUN_BROKEN_TESTS)
-gap> TestOrthogonalInSp(1, 4, 8);
-gap> TestOrthogonalInSp(-1, 6, 2);
+gap> TestOrthogonalInSp(1, 4, 8); # FIXME: `Error, !!!`, see https://github.com/gap-packages/recog/issues/12
+gap> TestOrthogonalInSp(-1, 6, 2); # FIXME: `Giving up, Schreier tree is not shallow.`
 #@fi
 gap> TestOrthogonalInSp(-1, 4, 4);
 gap> TestOrthogonalInSp(1, 6, 2);

tst/standard/ReducibleMatrixGroups.tst

@@ -82,7 +82,7 @@ gap> TestOmegaStabilizerOfIsotropicSubspace := function(epsilon, d, q, k)
 >   CheckSize(G);
 > end;;
 #@if IsBound(CLASSICAL_MAXIMALS_RUN_BROKEN_TESTS)
-gap> TestOmegaStabilizerOfIsotropicSubspace(1, 6, 8, 2);
+gap> TestOmegaStabilizerOfIsotropicSubspace(1, 6, 8, 2);  # FIXME: `Error, !!!`, see https://github.com/gap-packages/recog/issues/12
 #@fi
 gap> TestOmegaStabilizerOfIsotropicSubspace(1, 8, 5, 4);
 gap> TestOmegaStabilizerOfIsotropicSubspace(0, 5, 7, 2);

tst/standard/TensorProductMatrixGroups.tst

@@ -42,7 +42,7 @@ gap> TestTensorProductStabilizerInSp := function(epsilon, d1, d2, q)
 gap> TestTensorProductStabilizerInSp(0, 2, 3, 3);
 gap> TestTensorProductStabilizerInSp(0, 4, 3, 5);
 #@if IsBound(CLASSICAL_MAXIMALS_RUN_BROKEN_TESTS)
-gap> TestTensorProductStabilizerInSp(1, 2, 4, 5);
+gap> TestTensorProductStabilizerInSp(1, 2, 4, 5);  # FIXME: see https://github.com/gap-packages/recog/issues/316
 #@fi
 gap> TestTensorProductStabilizerInSp(-1, 2, 4, 5);