Call methods directly instead of using reflection in genericeditor

Author: akurtakov

tests/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/HoverTest.java

@@ -170,7 +170,7 @@ private Shell getHoverShell(AbstractInformationControlManager manager, boolean f
 				return null;
 			}
 		}
-		Shell shell= (Shell) new Accessor(control[0], AbstractInformationControl.class).get("fShell");
+		Shell shell= control[0].getShell();
 		DisplayHelper.waitForCondition(this.editor.getSite().getShell().getDisplay(), 2000, () -> shell.isVisible());
 		if (failOnError) {
 			assertTrue(shell.isVisible());

tests/org.eclipse.ui.genericeditor.tests/src/org/eclipse/ui/genericeditor/tests/ShowInformationTest.java

@@ -83,7 +83,7 @@ private Shell getHoverShell(AbstractInformationControlManager manager, boolean f
 			}
 		}
 		boolean[] result = {false};
-		Shell shell= (Shell) new Accessor(control[0], AbstractInformationControl.class).get("fShell");
+		Shell shell= control[0].getShell();
 		DisplayHelper.waitForCondition(control[0].getShell().getDisplay(), 2000, () -> result[0] = shell.isVisible());
 		if (failOnError) {
 			assertTrue(shell.isVisible());