diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/breakpoint-08.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/breakpoint-08.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+// Breakpoints are dropped from eval scripts when they finish executing.
+// (The eval cache doesn't cache breakpoints.)
+
+var g = newGlobal();
+
+g.line0 = undefined;
+g.eval("function f() {\n" +
+       "    return eval(s);\n" +
+       "}\n");
+g.s = ("line0 = Error().lineNumber;\n" +
+       "debugger;\n" +          // line0 + 1
+       "result = 'ok';\n");     // line0 + 2
+
+var dbg = Debugger(g);
+var hits = 0, bphits = 0;
+dbg.onDebuggerStatement = function (frame) {
+    assertEq(frame.type, 'eval');
+    assertEq(frame.script.getBreakpoints().length, 0);
+    var h = {hit: function (frame) { bphits++; }};
+    var offs = frame.script.getLineOffsets(g.line0 + 2);
+    for (var i = 0; i < offs.length; i++)
+        frame.script.setBreakpoint(offs[i], h);
+    hits++;
+};
+
+for (var i = 0; i < 3; i++) {
+    assertEq(g.f(), 'ok');
+    assertEq(g.result, 'ok');
+}
+assertEq(hits, 3);
+assertEq(bphits, 3);