8007395: StringIndexOutofBoundsException in Match.find() when input String contains surrogate UTF-16 characters
Summary: updated GroupCurly.match0() to backtrack correctly
Reviewed-by: mchung
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/**
* NASHORN-668: RegExp literal errors are early errors and so should be reported before 'runtime'
*
* @test/compile-error
*/
// this should not be printed!!
print("hello world!!");
// repeated flag
var x = /xxx/gg;
// unsupported flag
var y = /xxx/X;
// dangling metachar
var z = /2**/;