Testcase for ES7 exponentiation operator
Testcase for ES7 exponentiation operator

The test covers all special cases, as well as chained **= assignment
operators.

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