Remove outdated node type "Import" (#16831)

src/language-js/comments/printer-methods.js

@@ -14,8 +14,6 @@ import {
 const nodeTypesCanNotAttachComment = new Set([
   "EmptyStatement",
   "TemplateElement",
-  // In ESTree `import` is a token, `import("foo")`
-  "Import",
   // There is no similar node in Babel AST
   // ```ts
   // class Foo {

src/language-js/print/call-arguments.js

@@ -78,13 +78,11 @@ function printCallArguments(path, options, print) {
     printedArguments.push(argDoc);
   });
 
-  // Dynamic imports cannot have trailing commas
-  const isDynamicImport =
-    node.type === "ImportExpression" || node.callee.type === "Import";
   const maybeTrailingComma =
     // Angular does not allow trailing comma
     !options.parser.startsWith("__ng_") &&
-    !isDynamicImport &&
+    // Dynamic imports cannot have trailing commas
+    node.type !== "ImportExpression" &&
     shouldPrintComma(options, "all")
       ? ","
       : "";

src/language-js/print/estree.js

@@ -229,8 +229,6 @@ function printEstree(path, options, print, args) {
       return printModuleSpecifier(path, options, print);
     case "ImportAttribute":
       return printProperty(path, options, print);
-    case "Import":
-      return "import";
 
     case "Program":
     case "BlockStatement":

src/language-js/traverse/visitor-keys.evaluate.js

@@ -95,5 +95,7 @@ const visitorKeys = Object.fromEntries(
 
 // Babel will remove this in v8
 delete visitorKeys.DecimalLiteral;
+// Won't exist since we use `createImportExpressions` when parsing with babel
+delete visitorKeys.Import;
 
 export default visitorKeys;

src/language-js/utils/index.js

@@ -191,7 +191,6 @@ const isSingleWordType = createTypeCheckFunction([
   "Super",
   "PrivateName",
   "PrivateIdentifier",
-  "Import",
 ]);
 
 const isObjectType = createTypeCheckFunction([

tests/unit/__snapshots__/visitor-keys.js.snap

@@ -411,7 +411,6 @@ exports[`visitor keys estree 1`] = `
     "consequent",
     "test",
   ],
-  "Import": [],
   "ImportAttribute": [
     "key",
     "value",