8034812: remove IDX_INIT macro hack in Node class Summary: The IDX_INIT macro used by Node::Node(...) to retrieve the Compile object is removed and replaced by a call to Compile::current(). The Node constructor, new operator and all calls to it are adapted accordingly. Reviewed-by: kvn, jrose, iveresov, goetz

test/script/error/JDK-8027933.js:31:0 Expected an operand but found const
const THE_ANSWER = 42;
^