tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/callsites/readme.md b/tools/node_modules/eslint/node_modules/callsites/readme.md
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+# callsites [![Build Status](https://travis-ci.org/sindresorhus/callsites.svg?branch=master)](https://travis-ci.org/sindresorhus/callsites)
+
+> Get callsites from the [V8 stack trace API](https://code.google.com/p/v8/wiki/JavaScriptStackTraceApi)
+
+
+## Install
+
+```sh
+$ npm install --save callsites
+```
+
+
+## Usage
+
+```js
+var callsites = require('callsites');
+
+function unicorn() {
+	console.log(callsites()[0].getFileName());
+	//=> /Users/sindresorhus/dev/callsites/test.js
+}
+
+unicorn();
+```
+
+## API
+
+Returns an array of callsite objects with the following methods:
+
+- `getThis`: returns the value of this
+- `getTypeName`: returns the type of this as a string. This is the name of the function stored in the constructor field of this, if available, otherwise the object's [[Class]] internal property.
+- `getFunction`: returns the current function
+- `getFunctionName`: returns the name of the current function, typically its name property. If a name property is not available an attempt will be made to try to infer a name from the function's context.
+- `getMethodName`: returns the name of the property of this or one of its prototypes that holds the current function
+- `getFileName`: if this function was defined in a script returns the name of the script
+- `getLineNumber`: if this function was defined in a script returns the current line number
+- `getColumnNumber`: if this function was defined in a script returns the current column number
+- `getEvalOrigin`: if this function was created using a call to eval returns a CallSite object representing the location where eval was called
+- `isToplevel`: is this a toplevel invocation, that is, is this the global object?
+- `isEval`: does this call take place in code defined by a call to eval?
+- `isNative`: is this call in native V8 code?
+- `isConstructor`: is this a constructor call?
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)