Put declaration closest to its first usage

Signed-off-by: balaskoa <jeno.balasko@ericsson.com>

org.eclipse.titan.designer/src/org/eclipse/titan/designer/AST/TTCN3/types/TTCN3_Set_Seq_Choice_BaseType.java

@@ -588,12 +588,11 @@ public abstract class TTCN3_Set_Seq_Choice_BaseType extends Type implements ITyp
 		if (compField == null) {
 			return null;
 		}
-		final IType compFieldType = compField.getType().getTypeRefdLast(CompilationTimeStamp.getBaseTimestamp());
-
 		if (subreferences.get(localIndex) == lastSubreference) {
 			return Declaration.createInstance(getDefiningAssignment(), compField.getIdentifier());
 		}
-
+		
+		final IType compFieldType = compField.getType().getTypeRefdLast(CompilationTimeStamp.getBaseTimestamp());
 		if (compFieldType instanceof IReferenceableElement) {
 			final Declaration decl = ((IReferenceableElement) compFieldType).resolveReference(reference, localIndex + 1, lastSubreference);
 			return decl != null ? decl : Declaration.createInstance(getDefiningAssignment(), compField.getIdentifier());