8076265: Simplify deal_with_reference
Summary: Eliminate _CHECK_BOTH_FINGERS_ and simplify.
Reviewed-by: brutisso, tschatzl
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var r = new java.lang.Runnable() {
run: function() {
print("running...\n");
}
};
// "r" can be passed to Java methods that expect java.lang.Runnable
var th = new java.lang.Thread(r);
th.start();
th.join();