Bug #: none
Submitted by: eseidel
Reviewed by: none needed, svg build fix only.
        Fix the SVG build buy linking EcmaInterface.cpp
        from derived sources into the source root and
        adding to the compiled sources.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@10583 268f45cc-cd09-0410-ab3c-d52691b4dbfc