Re-enable tests that were fixed on the Truffle external polyglot isolate side

Author: timfel

graalpython/com.oracle.graal.python.test.integration/src/com/oracle/graal/python/test/integration/engine/SharedEngineMultithreadingTestBase.java

@@ -55,8 +55,6 @@
 
 import org.graalvm.polyglot.Context;
 import org.graalvm.polyglot.Engine;
-import org.junit.Assume;
-import org.junit.BeforeClass;
 import org.junit.Rule;
 
 import com.oracle.graal.python.test.integration.CleanupRule;
@@ -75,12 +73,6 @@ public class SharedEngineMultithreadingTestBase extends PythonTests {
 
     @Rule public CleanupRule cleanup = new CleanupRule();
 
-    @BeforeClass
-    public static void setupClass() {
-        Assume.assumeFalse("Polyglot isolates may run out of socket descriptors, this is to be investigated",
-                        Boolean.getBoolean("polyglot.engine.SpawnIsolate"));
-    }
-
     protected static void log(String fmt, Object... args) {
         if (LOG) {
             System.out.printf(fmt + "\n", args);

graalpython/com.oracle.graal.python.test.integration/src/org/graalvm/python/embedding/test/integration/VirtualFileSystemIntegrationTest.java

@@ -270,8 +270,6 @@ public void fsOperations(Context ctx, String pathPrefix) {
         eval(ctx, "import os; assert os.path.exists('{pathPrefix}emptydir')", pathPrefix);
         eval(ctx, "import os; assert os.path.exists('{pathPrefix}emptydir/')", pathPrefix);
         eval(ctx, "import os; assert os.path.exists('{pathPrefix}dir1/file2')", pathPrefix);
-        Assume.assumeFalse("[GR-66484] FileNotFoundException is not translated properly to isolate and then the Python code gets a generic I/O error",
-                        Boolean.getBoolean("polyglot.engine.SpawnIsolate"));
         eval(ctx, "import os; assert not os.path.exists('{pathPrefix}doesnotexist')", pathPrefix);
         eval(ctx, "import os; assert not os.path.exists('{pathPrefix}doesnotexist/')", pathPrefix);