Upgrade flow to 0.66 and fix a few minor errors. (#7431)

packages/babylon/src/parser/expression.js

@@ -1678,7 +1678,9 @@ export default class ExpressionParser extends LValParser {
     const oldStrict = this.state.strict;
     if (isStrict) this.state.strict = isStrict;
     if (node.id) {
-      this.checkReservedWord(node.id, node.start, true, true);
+      // TODO(logan): This check is broken because it passes a node object as
+      // a binding name. Passing the actual string introduces other failures.
+      // this.checkReservedWord(node.id, node.start, true, true);
     }
     if (checkLVal) {
       const nameHash: any = Object.create(null);

packages/babylon/src/parser/statement.js

@@ -1488,7 +1488,10 @@ export default class StatementParser extends ExpressionParser {
           node.declaration.type === "FunctionDeclaration" ||
           node.declaration.type === "ClassDeclaration"
         ) {
-          this.checkDuplicateExports(node, node.declaration.id.name);
+          const id = node.declaration.id;
+          if (!id) throw new Error("Assertion failure");
+
+          this.checkDuplicateExports(node, id.name);
         } else if (node.declaration.type === "VariableDeclaration") {
           for (const declaration of node.declaration.declarations) {
             this.checkDeclaration(declaration.id);

packages/babylon/src/types.js

@@ -1068,6 +1068,8 @@ export type TsType =
   | TsArrayType
   | TsTupleType
   | TsUnionOrIntersectionType
+  | TsConditionalType
+  | TsInferType
   | TsParenthesizedType
   | TsTypeOperator
   | TsIndexedAccessType
@@ -1163,10 +1165,10 @@ export type TsConditionalType = TsTypeBase & {
   checkType: TsType,
   extendsType: TsType,
   trueType: TsType,
-  falseType: tsType,
+  falseType: TsType,
 };
 
-export type InferType = TsTypeBase & {
+export type TsInferType = TsTypeBase & {
   type: "TSInferType",
   typeParameter: TypeParameter,
 };