Enable PySystemStateTest in Gradle build following fix for #2410.

(Note previous set d83a36fe9f8e is wrongly-attributed. Those mistakes are mine.)

--HG--
extra : amend_source : 0eda4238237bbf48663421477f6fe723b282800b

build.gradle

@@ -613,18 +613,20 @@ test {
     exclude 'org/python/tests/imp/**'   // See build.xml:importest
 
     // Some additional exclusions or else the task fails
+
     // FIXME: leaves stdin/out/err as PyFileWriter that has no fileno()
     // causing _ioTest to fail.
     exclude '**/jsr223/*'
+
     // FIXME: Tests that hard-code directory paths (use a symbol):
     exclude 'org/python/compiler/custom_proxymaker/**'
     exclude 'org/python/compiler/JavaMakerSmokeTest.class'
+
     // FIXME: Failing test finds project root from test class location
     exclude 'org/python/core/PySystemState_registry_Test.class'
+
     // FIXME: Fails as sys._jy_console not set when run under Gradle
     exclude 'org/python/util/InterpreterTest.class'
-    // FIXME: Failing test, see issue 2410
-    exclude 'org/python/core/PySystemStateTest.class'
 
     doFirst {
         println "systemProperties = $systemProperties"