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Robert_Charlton - 6:15 pm on Dec 12, 2006 (gmt 0)
You can't search source code in Google. You can only search what Google sees on the page. The search you describe is a search for visible anchor text only, not for how Google might regard the coding of the link.
Searching for site:en.wikipedia.org mypagename.html does bring up the relevant wiki page/s. So Google is seeing the links but, according to my suspicions, not passing the juice.