dep: reduce size of node_modules when adding ts-jest

e2e/__helpers__/test-case/runtime.ts

@@ -22,7 +22,7 @@ import {
   writeFileSync,
 } from 'fs-extra'
 import { stringify as stringifyJson5 } from 'json5'
-import merge = require('lodash.merge')
+import merge = require('lodash/merge')
 
 
 import * as Paths from '../../../scripts/lib/paths'

package.json

@@ -60,7 +60,7 @@
     "fast-json-stable-stringify": "2.x",
     "jest-util": "next",
     "json5": "2.x",
-    "lodash.memoize": "4.x",
+    "lodash": "4.x",
     "make-error": "1.x",
     "mkdirp": "1.x",
     "semver": "7.x",
@@ -88,9 +88,7 @@
     "@types/fs-extra": "latest",
     "@types/js-yaml": "latest",
     "@types/json5": "latest",
-    "@types/lodash.memoize": "4.x",
-    "@types/lodash.merge": "4.x",
-    "@types/lodash.set": "4.x",
+    "@types/lodash": "4.x",
     "@types/micromatch": "4.x",
     "@types/mkdirp": "latest",
     "@types/node": "14.x",
@@ -115,8 +113,6 @@
     "jest": "next",
     "js-yaml": "latest",
     "lint-staged": "latest",
-    "lodash.merge": "4.x",
-    "lodash.set": "4.x",
     "npm-run-all": "latest",
     "prettier": "2.x",
     "source-map": "latest",

src/compiler/ts-compiler.ts

@@ -1,7 +1,7 @@
 import { basename, normalize, relative } from 'path'
 
 import { LogContexts, Logger, LogLevels } from 'bs-logger'
-import memoize from 'lodash.memoize'
+import memoize from 'lodash/memoize'
 import {
   EmitOutput,
   LanguageService,

src/utils/backports.spec.ts

@@ -1,7 +1,7 @@
 import { inspect } from 'util'
 
 import { testing } from 'bs-logger'
-import set = require('lodash.set')
+import set = require('lodash/set')
 
 import { backportJestConfig } from './backports'