Lazy-highlight the whole string at point

* lisp/isearch.el (isearch-lazy-highlight-search): Extend the bound of
the wrapped search by the length of the search string to be able
to lazy-highlight the whole search string at point.

Fixes: debbugs:19353
Fix query-replace-regexp when using lisp expressions for replacement

* lisp/replace.el (query-replace-read-from): Use
query-replace-compile-replacement only on the return value.

Fixes: debbugs:19383