vm: use import attributes instead of import assertions

The old import assertions proposal has been
renamed to "import attributes" with the following major changes:

1. The keyword is now `with` instead of `assert`.
2. Unknown assertions cause an error rather than being ignored.

This PR updates the documentation to encourage folks to use the new
syntax, and add aliases to preserve backward compatibility.

PR-URL: #50141
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>
Reviewed-By: Vinícius Lourenço Claro Cardoso <contact@viniciusl.com.br>

doc/api/vm.md

@@ -101,7 +101,7 @@ changes:
     using it in a production environment.
     * `specifier` {string} specifier passed to `import()`
     * `script` {vm.Script}
-    * `importAttributes` {Object} The `"assert"` value passed to the
+    * `importAttributes` {Object} The `"with"` value passed to the
       [`optionsExpression`][] optional parameter, or an empty object if no value
       was provided.
     * Returns: {Module Namespace Object|vm.Module} Returning a `vm.Module` is
@@ -633,7 +633,7 @@ changes:
   * `extra` {Object}
     * `attributes` {Object} The data from the attribute:
       ```mjs
-      import foo from 'foo' assert { name: 'value' };
+      import foo from 'foo' with { name: 'value' };
       //                           ^^^^^^^^^^^^^^^^^ the attribute
       ```
       Per ECMA-262, hosts are expected to trigger an error if an
@@ -1025,7 +1025,7 @@ changes:
     considered stable.
     * `specifier` {string} specifier passed to `import()`
     * `function` {Function}
-    * `importAttributes` {Object} The `"assert"` value passed to the
+    * `importAttributes` {Object} The `"with"` value passed to the
       [`optionsExpression`][] optional parameter, or an empty object if no value
       was provided.
     * Returns: {Module Namespace Object|vm.Module} Returning a `vm.Module` is
@@ -1249,7 +1249,7 @@ changes:
     using it in a production environment.
     * `specifier` {string} specifier passed to `import()`
     * `script` {vm.Script}
-    * `importAttributes` {Object} The `"assert"` value passed to the
+    * `importAttributes` {Object} The `"with"` value passed to the
       [`optionsExpression`][] optional parameter, or an empty object if no value
       was provided.
     * Returns: {Module Namespace Object|vm.Module} Returning a `vm.Module` is
@@ -1348,7 +1348,7 @@ changes:
     using it in a production environment.
     * `specifier` {string} specifier passed to `import()`
     * `script` {vm.Script}
-    * `importAttributes` {Object} The `"assert"` value passed to the
+    * `importAttributes` {Object} The `"with"` value passed to the
       [`optionsExpression`][] optional parameter, or an empty object if no value
       was provided.
     * Returns: {Module Namespace Object|vm.Module} Returning a `vm.Module` is
@@ -1428,7 +1428,7 @@ changes:
     using it in a production environment.
     * `specifier` {string} specifier passed to `import()`
     * `script` {vm.Script}
-    * `importAttributes` {Object} The `"assert"` value passed to the
+    * `importAttributes` {Object} The `"with"` value passed to the
       [`optionsExpression`][] optional parameter, or an empty object if no value
       was provided.
     * Returns: {Module Namespace Object|vm.Module} Returning a `vm.Module` is