DevTools: [Frameworks] Bugfix: do StepOut in framework code after StepIn limit is up.

LayoutTests/inspector/sources/debugger/resources/framework.js

+// A framework for testing.
+
+var Framework = {};
+
+Framework.safeRun = function(callback, onSuccess, onException, breakOnUncaught)
+{
+    try {
+        callback();
+        if (onSuccess)
+            Framework.safeRun(onSuccess, undefined, onException, breakOnUncaught);
+    } catch (e) {
+        if (onException)
+            Framework.safeRun(onException, undefined, breakOnUncaught ? Framework.breakInFramework : undefined);
+        else if (breakOnUncaught)
+            Framework.breakInFramework();
+    }
+}
+
+Framework.throwFrameworkException = function(msg)
+{
+    throw Error("FrameworkException" + (msg ? ": " + msg : ""));
+}
+
+Framework.breakInFramework = function()
+{
+    debugger;
+}
+
+Framework.empty = function()
+{
+}
+
+Framework.doSomeWork = function()
+{
+    const numberOfSteps = 50;
+    for (var i = 0; i < numberOfSteps; ++i) {
+        if (window["dummy property should not exist!" + i]) // Prevent optimizations.
+            return i;
+        Framework.safeRun(Framework.empty, Framework.empty, Framework.empty, true);
+    }
+}