Move stop handler unit test to integration test

tests/jballerina-integration-test/src/test/java/org/ballerinalang/test/packaging/ModuleExecutionFlowTests.java

@@ -140,6 +140,8 @@ public void testStopHandlerExecution() throws BallerinaTestException {
         LogLeecher infoLeecher1 = new LogLeecher("Stopped stopHandlerFunc3");
         LogLeecher infoLeecher2 = new LogLeecher("Stopped stopHandlerFunc2");
         LogLeecher infoLeecher3 = new LogLeecher("Stopped stopHandlerFunc1");
+        LogLeecher infoLeecher4 = new LogLeecher("Stopped inlineStopHandler");
+        serverInstance.addLogLeecher(infoLeecher4);
         serverInstance.addLogLeecher(infoLeecher1);
         serverInstance.addLogLeecher(infoLeecher2);
         serverInstance.addLogLeecher(infoLeecher3);

tests/jballerina-integration-test/src/test/resources/packaging/stop_handler_execution/main.bal

@@ -22,19 +22,19 @@ int count = 0;
 
 function stopHandlerFunc1() returns error? {
     incrementCount();
-    assertCount(5);
+    assertCount(6);
     println("Stopped stopHandlerFunc1");
 }
 
 function stopHandlerFunc2() returns error? {
     incrementCount();
-    assertCount(4);
+    assertCount(5);
     println("Stopped stopHandlerFunc2");
 }
 
 function stopHandlerFunc3() returns error? {
     incrementCount();
-    assertCount(3);
+    assertCount(4);
     println("Stopped stopHandlerFunc3");
 }
 
@@ -49,6 +49,12 @@ public function main() {
     incrementCount();
     assertCount(2);
     runtime:onGracefulStop(stopHandlerFunc3);
+    runtime:StopHandler inlineStopHandler = function() returns error? {
+        incrementCount();
+        assertCount(3);
+        println("Stopped inlineStopHandler");
+    };
+    runtime:onGracefulStop(inlineStopHandler);
     runtime:sleep(3);
 }
 

tests/jballerina-unit-test/src/test/java/org/ballerinalang/test/runtime/api/RuntimeAPITest.java

@@ -45,7 +45,6 @@ public Object[] packageNameProvider() {
                 "invalid_values",
                 "async",
                 "utils",
-                "stop_handler",
                 "identifier_utils",
                 "environment"
         };