Merge from master

build/lib/tslint/noNewBufferRule.ts

@@ -0,0 +1,23 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as ts from 'typescript';
+import * as Lint from 'tslint';
+
+export class Rule extends Lint.Rules.AbstractRule {
+	apply(sourceFile: ts.SourceFile): Lint.RuleFailure[] {
+		return this.applyWithWalker(new NewBufferRuleWalker(sourceFile, this.getOptions()));
+	}
+}
+
+class NewBufferRuleWalker extends Lint.RuleWalker {
+	visitNewExpression(node: ts.NewExpression) {
+		if (node.expression.kind === ts.SyntaxKind.Identifier && node.expression && (node.expression as ts.Identifier).text === 'Buffer') {
+			this.addFailureAtNode(node, '`new Buffer` is deprecated. Consider Buffer.From or Buffer.alloc instead.');
+		}
+
+		super.visitNewExpression(node);
+	}
+}