test_runner: improve coverage source map diagnostics

[trivikr]

Refs: https://github.com/nodejs/reliability/issues?q=sort%3Aupdated-desc%20is%3Aissue%20state%3Aopen%20%22test-runner-coverage-source-map%22

Example

not ok 3925 parallel/test-runner-coverage-source-map
  ---
  duration_ms: 1652.14700
  severity: fail
  exitcode: 1
  stack: |-
    Test failure: 'should work with source maps'
    Location: test/parallel/test-runner-coverage-source-map.js:32:9
    AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
    
      t.assert.ok(spawned.stdout.includes(report))
    
        at TestContext.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-runner-coverage-source-map.js:51:14)
        at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
        at async Test.run (node:internal/test_runner/test:1389:7)
        at async Promise.all (index 0)
        at async Suite.run (node:internal/test_runner/test:1869:7)
        at async startSubtestAfterBootstrap (node:internal/test_runner/harness:387:3) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
      operator: '==',
      diff: 'simple'
    }
    
    Test failure: 'should only work with --enable-source-maps'
    Location: test/parallel/test-runner-coverage-source-map.js:55:9
    AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
    
      t.assert.ok(spawned.stdout.includes(report))
    
        at TestContext.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-runner-coverage-source-map.js:72:14)
        at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
        at async Test.run (node:internal/test_runner/test:1389:7)
        at async Suite.processPendingSubtests (node:internal/test_runner/test:960:7) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
      operator: '==',
      diff: 'simple'
    }
    
    Test failure: 'should ignore erased TypeScript import type lines'
    Location: test/parallel/test-runner-coverage-source-map.js:76:9
    AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
    
      t.assert.ok(spawned.stdout.includes(report))
    
        at TestContext.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-runner-coverage-source-map.js:97:14)
        at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
        at async Test.run (node:internal/test_runner/test:1389:7)
        at async Suite.processPendingSubtests (node:internal/test_runner/test:960:7) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
      operator: '==',
      diff: 'simple'
    }
    
    Test failure: 'properly accounts for line endings in source maps'
    Location: test/parallel/test-runner-coverage-source-map.js:101:9
    AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
    
      t.assert.ok(spawned.stdout.includes(report))
    
        at TestContext.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-runner-coverage-source-map.js:122:14)
        at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
        at async Test.run (node:internal/test_runner/test:1389:7)
        at async Suite.processPendingSubtests (node:internal/test_runner/test:960:7) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
      operator: '==',
      diff: 'simple'
    }
    
    Test failure: 'should throw when a source map is missing a source file'
    Location: test/parallel/test-runner-coverage-source-map.js:126:9
    AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
    
      t.assert.ok(spawned.stdout.includes(error))
    
        at TestContext.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-runner-coverage-source-map.js:133:14)
        at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
        at async Test.run (node:internal/test_runner/test:1389:7)
        at async Suite.processPendingSubtests (node:internal/test_runner/test:960:7) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
      operator: '==',
      diff: 'simple'
    }
    
    Test failure: 'should throw when a source map is not valid JSON'
    Location: test/parallel/test-runner-coverage-source-map.js:141:11
    AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
    
      t.assert.ok(spawned.stdout.includes(error))
    
        at TestContext.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-runner-coverage-source-map.js:146:16)
        at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
        at async Test.run (node:internal/test_runner/test:1389:7)
        at async Suite.processPendingSubtests (node:internal/test_runner/test:960:7) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
      operator: '==',
      diff: 'simple'
    }
    
    Test failure: 'should throw when a source map does not exist'
    Location: test/parallel/test-runner-coverage-source-map.js:141:11
    AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
    
      t.assert.ok(spawned.stdout.includes(error))
    
        at TestContext.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-runner-coverage-source-map.js:146:16)
        at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
        at async Test.run (node:internal/test_runner/test:1389:7)
        at async Suite.processPendingSubtests (node:internal/test_runner/test:960:7) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: false,
      expected: true,
      operator: '==',
      diff: 'simple'
    }