Switch to @jridgewell/trace-mapping in fixture-test-runner

This accomplishes 2 goals:
- Gets us off the ancient `source-map` v0.5.7
- Speeds up construction and tracing by ~10x.

packages/babel-helper-transform-fixture-test-runner/package.json

@@ -18,10 +18,10 @@
     "@babel/code-frame": "workspace:^",
     "@babel/core": "workspace:^",
     "@babel/helper-fixtures": "workspace:^",
+    "@jridgewell/trace-mapping": "^0.3.2",
     "babel-check-duplicated-nodes": "^1.0.0",
     "quick-lru": "5.1.0",
-    "regenerator-runtime": "^0.13.7",
-    "source-map": "^0.5.0"
+    "regenerator-runtime": "^0.13.7"
   },
   "devDependencies": {
     "@types/jest": "^25.2.2"

packages/babel-helper-transform-fixture-test-runner/src/index.ts

@@ -5,8 +5,8 @@ import {
   default as getFixtures,
   resolveOptionPluginOrPreset,
 } from "@babel/helper-fixtures";
-import sourceMap from "source-map";
 import { codeFrameColumns } from "@babel/code-frame";
+import { TraceMap, originalPositionFor } from "@jridgewell/trace-mapping";
 import * as helpers from "./helpers";
 import assert from "assert";
 import fs from "fs";
@@ -346,12 +346,12 @@ function run(task) {
   }
 
   if (task.sourceMappings) {
-    const consumer = new sourceMap.SourceMapConsumer(result.map);
+    const consumer = new TraceMap(result.map);
 
     task.sourceMappings.forEach(function (mapping) {
       const actual = mapping.original;
 
-      const expected = consumer.originalPositionFor(mapping.generated);
+      const expected = originalPositionFor(consumer, mapping.generated);
       expect({ line: expected.line, column: expected.column }).toEqual(actual);
     });
   }

yarn.lock

@@ -956,11 +956,11 @@ __metadata:
     "@babel/code-frame": "workspace:^"
     "@babel/core": "workspace:^"
     "@babel/helper-fixtures": "workspace:^"
+    "@jridgewell/trace-mapping": ^0.3.2
     "@types/jest": ^25.2.2
     babel-check-duplicated-nodes: ^1.0.0
     quick-lru: 5.1.0
     regenerator-runtime: ^0.13.7
-    source-map: ^0.5.0
   languageName: unknown
   linkType: soft
 
@@ -4091,6 +4091,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@jridgewell/sourcemap-codec@npm:^1.4.10":
+  version: 1.4.10
+  resolution: "@jridgewell/sourcemap-codec@npm:1.4.10"
+  checksum: 247229218edbe165dcf0a5ae0c4b81bff1b5438818bb09221f756681fe158597fdf25c2a803f9260453b299c98c7e01ddebeb1555cda3157d987cd22c08605ef
+  languageName: node
+  linkType: hard
+
 "@jridgewell/trace-mapping@npm:^0.2.2":
   version: 0.2.5
   resolution: "@jridgewell/trace-mapping@npm:0.2.5"
@@ -4101,6 +4108,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@jridgewell/trace-mapping@npm:^0.3.2":
+  version: 0.3.2
+  resolution: "@jridgewell/trace-mapping@npm:0.3.2"
+  dependencies:
+    "@jridgewell/resolve-uri": ^3.0.3
+    "@jridgewell/sourcemap-codec": ^1.4.10
+  checksum: b58be6b4133cbcb20bfd28c9ca843b8db9efa0bf1d7e0e9e26b2228dace94ad53161c996ab1d762d7c3955dfc398a7734e7b84a2493ae36b451f232234fbb257
+  languageName: node
+  linkType: hard
+
 "@mdn/browser-compat-data@npm:^4.0.10":
   version: 4.0.10
   resolution: "@mdn/browser-compat-data@npm:4.0.10"