[es6] ship regexp sticky flag.

test/mjsunit/regexp-not-sticky-yet.js

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+// Flags: --no-harmony-regexps
 // Test that sticky regexp support is not affecting V8 when the
 // --harmony-regexps flag is not on.
 
 assertThrows(function() { eval("/foo.bar/y"); }, SyntaxError);
 assertThrows(function() { eval("/foobar/y"); }, SyntaxError);
 assertThrows(function() { eval("/foo.bar/gy"); }, SyntaxError);
 assertThrows(function() { eval("/foobar/gy"); }, SyntaxError);
 assertThrows(function() { new RegExp("foo.bar", "y"); }, SyntaxError);
 assertThrows(function() { new RegExp("foobar", "y"); }, SyntaxError);
 assertThrows(function() { new RegExp("foo.bar", "gy"); }, SyntaxError);
@@ skipping 18 matching lines @@
 
 assertTrue(re.test("..foo.bar"));
 
 re.lastIndex = -1; // Ignored for non-global, non-sticky.
 assertTrue(re.test("..foo.bar"));
 assertEquals(-1, re.lastIndex);
 
 re.lastIndex = -1; // Ignored for non-global, non-sticky.
 assertTrue(!!re.exec("..foo.bar"));
 assertEquals(-1, re.lastIndex);