Refactor BetterNodeFinder::findFirstInFunctionLikeScoped() to work with SilentVoidResolver

[samsonasik]

@staabm here ensure search after not found on scoped search,

Ref bug:

• Faster SilentVoidResolver #4923 (comment)

that reverted at:

• [TypeDeclaration] Skip return after return closure on AddVoidReturnTypeWhereNoReturnRector #4930