fix: remove filename annotation in buildCodeFrameError (#10539)

packages/babel-core/src/transformation/file/file.js

@@ -259,8 +259,6 @@ export default class File {
   ): Error {
     let loc = node && (node.loc || node._loc);
 
-    msg = `${this.opts.filename ?? "unknown"}: ${msg}`;
-
     if (!loc && node) {
       const state = {
         loc: null,

packages/babel-core/test/fixtures/plugins/build-code-frame-error/exec.js

@@ -1,16 +1,18 @@
-var code = "function f() {}";
-transform(code, {
-  plugins: [
-    function() {
-      return {
-        visitor: {
-          FunctionDeclaration: function(path) {
-            throw path.buildCodeFrameError("someMsg");
+expect(() => {
+  var code = "function f() {}";
+  transform(code, {
+    plugins: [
+      function() {
+        return {
+          visitor: {
+            FunctionDeclaration: function(path) {
+              throw path.buildCodeFrameError("someMsg");
+            },
           },
-        },
-      };
-    },
-  ],
-  // hard to assert on ANSI escape codes
-  highlightCode: false,
-});
+        };
+      },
+    ],
+    // hard to assert on ANSI escape codes
+    highlightCode: false,
+  });
+}).toThrow(/^unknown: someMsg\s+> 1 \| function f\(\) {}/);

packages/babel-core/test/fixtures/plugins/build-code-frame-error/options.json

@@ -1,3 +0,0 @@
-{
-  "throws": "unknown: someMsg\n> 1 | function f() {}"
-}