initial commit. phase 1 complete

frontend/node_modules/sucrase/dist/esm/util/getIdentifierNames.js

@@ -0,0 +1,15 @@
+
+import {TokenType as tt} from "../parser/tokenizer/types";
+
+/**
+ * Get all identifier names in the code, in order, including duplicates.
+ */
+export default function getIdentifierNames(code, tokens) {
+  const names = [];
+  for (const token of tokens) {
+    if (token.type === tt.name) {
+      names.push(code.slice(token.start, token.end));
+    }
+  }
+  return names;
+}