Fix vistor keys for FunctionExpression (#18084)

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

@@ -32,7 +32,6 @@ const additionalVisitorKeys = {
 const excludeVisitorKeys = {
   // From `flowVisitorKeys`
   ArrowFunctionExpression: ["id"],
-  FunctionExpression: ["predicate"],
 
   // TODO: Remove `types` when babel changes AST of `TupleTypeAnnotation`
   // Flow parser changed `.types` to `.elementTypes` https://github.com/facebook/flow/commit/5b60e6a81dc277dfab2e88fa3737a4dc9aafdcab

tests/format/flow/function/__snapshots__/format.test.js.snap

@@ -0,0 +1,15 @@
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
+
+exports[`function-predicate.js format 1`] = `
+====================================options=====================================
+parsers: ["flow"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+const fn = function(): %checks  {}
+
+=====================================output=====================================
+const fn = function (): %checks {};
+
+================================================================================
+`;

tests/format/flow/function/format.test.js

@@ -0,0 +1 @@
+runFormatTest(import.meta, ["flow"]);

tests/format/flow/function/function-predicate.js

@@ -0,0 +1 @@
+const fn = function(): %checks  {}

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

@@ -372,6 +372,7 @@ exports[`visitor keys estree 1`] = `
     "body",
     "id",
     "params",
+    "predicate",
     "returnType",
     "typeParameters",
   ],