[2122] Fix another miss-typo from refactoring

Bug: 2122
Change-Id: I408eef4da2a001fe3209f687623ca06dcbf2bef3
Signed-off-by: Philippe DUL <philippe.dul@thalesgroup.com>

core/plugins/org.polarsys.capella.core.platform.sirius.ui.menu/src/org/polarsys/capella/core/platform/sirius/ui/ActionPropertyTester.java

@@ -62,7 +62,7 @@ public boolean test(Object object_p, String propertyName_p, Object[] params_p, O
           return isConvertPrimitive(element);
         }
         if ("transformLiteralNumericValue".equals(actionName)) { //$NON-NLS-1$
-
+          return element instanceof LiteralNumericValue;
         }
         if ("requirementManagerWizard".equals(actionName)) { //$NON-NLS-1$
           return isRequirementManagerWizard(element);