Starting out the import statement

lib/ast.js

@@ -702,6 +702,13 @@ var AST_Const = DEFNODE("Const", null, {
     $documentation: "A `const` statement"
 }, AST_Definitions);
 
+var AST_Import = DEFNODE("Import", "module_name", {
+    $documentation: "An `import` statement",
+    $propdoc: {
+        module_name: "[AST_String] String literal describing where this module came from",
+    }
+});
+
 var AST_VarDef = DEFNODE("VarDef", "name value", {
     $documentation: "A variable declaration; only appears in a AST_Definitions node",
     $propdoc: {