Added vulcanize under third_party/npm_modules

node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-59.js

Index: node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-59.js
diff --git a/node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-59.js b/node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-59.js
new file mode 100644
index 0000000000000000000000000000000000000000..82b388067d08bff7c2773ed3575410dc540dd4b1
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-59.js
@@ -0,0 +1,30 @@
+keep_continue: {
+    options = {
+        dead_code: true,
+        evaluate: true
+    };
+    input: {
+        while (a) {
+            if (b) {
+                switch (true) {
+                  case c():
+                    d();
+                }
+                continue;
+            }
+            f();
+        }
+    }
+    expect: {
+        while (a) {
+            if (b) {
+                switch (true) {
+                  case c():
+                    d();
+                }
+                continue;
+            }
+            f();
+        }
+    }
+}