Genbuiltins fixes for string chaining
Genbuiltins fixes for string chaining

svaarala/duktape,markand/duktape,harold-b/duktape,svaarala/duktape,markand/duktape,svaarala/duktape,svaarala/duktape,markand/duktape,markand/duktape,svaarala/duktape,svaarala/duktape,svaarala/duktape,harold-b/duktape,harold-b/duktape,svaarala/duktape,markand/duktape,harold-b/duktape,harold-b/duktape,harold-b/duktape,markand/duktape,harold-b/duktape,markand/duktape,harold-b/duktape,markand/duktape,svaarala/duktape,harold-b/duktape,markand/duktape,harold-b/duktape,markand/duktape