Typos in LayoutTests/http/tests/security/xssAuditor/script-tag-inside-svg-tag*.html

Typos in LayoutTests/http/tests/security/xssAuditor/script-tag-inside-svg-tag*.html
https://bugs.webkit.org/show_bug.cgi?id=83794

Reviewed by Adam Barth.

Several changes needed to make the XSS in these test cases fire against actual
vulnerable browsers. The tests were still valid, but it is more helpful to see
the XSS pop up.

* http/tests/security/xssAuditor/script-tag-inside-svg-tag.html:
* http/tests/security/xssAuditor/script-tag-inside-svg-tag2.html:
* http/tests/security/xssAuditor/script-tag-inside-svg-tag3.html:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@114010 268f45cc-cd09-0410-ab3c-d52691b4dbfc