Bug 601395 - Add tests (r=cdleary)

js/src/trace-test/tests/basic/bug601395.js

@@ -0,0 +1,2 @@
+// |trace-test| error: SyntaxError;
+let(y = let(d = []) u, x

js/src/trace-test/tests/basic/bug601398.js

@@ -0,0 +1,7 @@
+(function () {
+    try {} finally {
+        let(z) {
+            return;
+        }
+    }
+})()

js/src/trace-test/tests/basic/bug601401.js

@@ -0,0 +1,5 @@
+let(e) {
+    with({}) try {} catch (x) {} finally {
+        let(y) {}
+    }
+}

js/src/trace-test/tests/basic/bug601402.js

@@ -0,0 +1,2 @@
+// |trace-test| error: SyntaxError;
+for (let d in [(0)]) let(b = (let(e) {}), d

js/src/trace-test/tests/basic/bug601428.js

@@ -0,0 +1,2 @@
+// |trace-test| error: SyntaxError;
+let({}=[c for(x in[])]){let