test: port test262 suite.

crates/oxc_minifier/src/ast_passes/peephole_fold_constants.rs

@@ -1551,12 +1551,25 @@ mod test {
         test("x = -1 >>> 0", "x=4294967295"); // 0xffffffff
         test("x = -2 >>> 0", "x=4294967294"); // 0xfffffffe
         test("x = 0x90000000 >>> 28", "x=9");
-        test("x = -2147483649 >>> 0", "x=2147483647");
 
         test("x = 0xffffffff << 0", "x=-1");
         test("x = 0xffffffff << 4", "x=-16");
         test("1 << 32", "1<<32");
         test("1 << -1", "1<<-1");
         test("1 >> 32", "1>>32");
+
+        // Regression on #6161, ported from <https://github.com/tc39/test262/blob/main/test/language/expressions/unsigned-right-shift/S9.6_A2.2.js>.
+        test("-2147483647 >>> 0", "2147483649");
+        test("-2147483648 >>> 0", "2147483648");
+        test("-2147483649 >>> 0", "2147483647");
+        test("-4294967295 >>> 0", "1");
+        test("-4294967296 >>> 0", "0");
+        test("-4294967297 >>> 0", "4294967295");
+        test("4294967295 >>> 0", "4294967295");
+        test("4294967296 >>> 0", "0");
+        test("4294967297 >>> 0", "1");
+        test("8589934591 >>> 0", "4294967295");
+        test("8589934592 >>> 0", "0");
+        test("8589934593 >>> 0", "1");
     }
 }