[TomasVotruba]

Small cleanup of ObjectTypeSpecifier::narrowToFullyQualifiedOrAliasedObjectType(), no behavior change:

• resolve $objectType->getClassName() once into a local, instead of calling it twice.
• collapse the two duplicated "invalid type" early returns in the template-tag branch into a single positive condition, falling through to the existing final resolveNamespacedNonExistingObjectType() return.

Behavior is identical: the invalid-type cases (no template type scope, or no matching template tag) still end up at the same resolveNamespacedNonExistingObjectType() return at the end of the method.

Full tests/ and rules-tests/TypeDeclaration suites pass; ECS and PHPStan level 8 clean on the file.