Bug 1240521 - IonBuilder processSwitchEnd returns ControlStatus_Error on allocation errors. r=h4writer

js/src/jit-test/tests/ion/bug1240521.js

@@ -0,0 +1,13 @@
+// |jit-test| allow-oom
+var egc = 138;
+function SwitchTest(value) {
+    switch (value) {
+        case 0:
+            break
+        case new Number:
+            result = 8
+        case oomAfterAllocations(egc):
+    }
+}
+!(SwitchTest(4) === 4);
+!(SwitchTest(true) === 2);

js/src/jit/IonBuilder.cpp

@@ -3054,7 +3054,7 @@ IonBuilder::processSwitchEnd(DeferredEdge* breaks, jsbytecode* exitpc)
         successor = newBlock(current, exitpc);
 
     if (!successor)
-        return ControlStatus_Ended;
+        return ControlStatus_Error;
 
     // If there is current, the current block flows into this one.
     // So current is also a predecessor to this block