@babel/eslint-parser: fix ImportExpression node to match ESTree spec (#10828)

* @babel/eslint-parser: fix ImportExpression node to match ESTree spec

* Update caller name for @babel/core.parseSync

* Move logic into estree plugin

* Add estree plugin tests

* Fix Flow error

* Fix flow

* Remove extra properties on ImportExpression node

* Incorporate review feedback

packages/babel-parser/src/parser/expression.js

@@ -758,7 +758,7 @@ export default class ExpressionParser extends LValParser {
   finishCallExpression<T: N.CallExpression | N.OptionalCallExpression>(
     node: T,
     optional: boolean,
-  ): T {
+  ): N.Expression {
     if (node.callee.type === "Import") {
       if (node.arguments.length !== 1) {
         this.raise(node.start, "import() requires exactly one argument");

packages/babel-parser/src/parser/lval.js

@@ -228,7 +228,7 @@ export default class LValParser extends NodeUtils {
   toReferencedListDeep(
     exprList: $ReadOnlyArray<?Expression>,
     isParenthesizedExpr?: boolean,
-  ): $ReadOnlyArray<?Expression> {
+  ): void {
     this.toReferencedList(exprList, isParenthesizedExpr);
 
     for (const expr of exprList) {
@@ -236,8 +236,6 @@ export default class LValParser extends NodeUtils {
         this.toReferencedListDeep(expr.elements);
       }
     }
-
-    return exprList;
   }
 
   // Parses spread element.