src/sage/modular/pollack_stevens: add "needs sage.libs.eclib"

Many examples in these modules require "needs sage.libs.eclib" to
pass when eclib is not installed (or was disabled).

Author: orlitzky

src/sage/modular/pollack_stevens/fund_domain.py

@@ -1448,6 +1448,7 @@ def prep_hecke_on_gen(self, l, gen, modulus=None):
 
         EXAMPLES::
 
+            sage: # needs sage.libs.eclib
             sage: E = EllipticCurve('11a')
             sage: phi = E.pollack_stevens_modular_symbol()
             sage: phi.values()
@@ -1518,6 +1519,7 @@ def prep_hecke_on_gen_list(self, l, gen, modulus=None):
 
         EXAMPLES::
 
+            sage: # needs sage.libs.eclib
             sage: E = EllipticCurve('11a')
             sage: phi = E.pollack_stevens_modular_symbol()
             sage: phi.values()

src/sage/modular/pollack_stevens/manin_map.py

@@ -10,6 +10,7 @@
 
 EXAMPLES::
 
+    sage: # needs sage.libs.eclib
     sage: E = EllipticCurve('11a')
     sage: phi = E.pollack_stevens_modular_symbol()
     sage: phi
@@ -779,6 +780,7 @@ def hecke(self, ell, algorithm='prep'):
 
         EXAMPLES::
 
+            sage: # needs sage.libs.eclib
             sage: E = EllipticCurve('11a')
             sage: phi = E.pollack_stevens_modular_symbol()
             sage: phi.values()
@@ -831,6 +833,7 @@ def p_stabilize(self, p, alpha, V):
 
         EXAMPLES::
 
+            sage: # needs.sage.libs.eclib
             sage: E = EllipticCurve('11a')
             sage: phi = E.pollack_stevens_modular_symbol()
             sage: f = phi._map