Remove hard dependency of memwatch-next

Author: raymondfeng

Makefile

@@ -19,6 +19,7 @@ b benchmark benchmarks:
 
 .PHONY: l ld leak leak-detection
 l ld leak leak-detection:
+	npm i @airbnb/node-memwatch --no-save || npm i memwatch-next --no-save
 	@ITERATIONS=$(ITERATIONS) $(TESTER) leak-detection \
 		--recursive \
 		--reporter spec \

leak-detection/leak-detector.test.js

@@ -5,7 +5,13 @@
 
 'use strict';
 
-var memwatch = require('memwatch-next');
+var memwatch;
+
+try {
+  memwatch = require('@airbnb/node-memwatch');
+} catch (e) {
+  memwatch = require('memwatch-next');
+}
 var sinon = require('sinon');
 
 describe('leak detector', function() {

package.json

@@ -39,7 +39,6 @@
     "eslint": "^5.1.0",
     "eslint-config-loopback": "^10.0.0",
     "loopback-datasource-juggler": "^3.23.0",
-    "memwatch-next": "^0.3.0",
     "mocha": "^5.2.0",
     "rc": "^1.2.8",
     "semver": "^5.5.1",