Merge branch 'master' of github.com:babel/babel

src/acorn/src/expression.js

@@ -474,7 +474,10 @@ pp.parseNew = function() {
   }
   let start = this.markPosition()
   node.callee = this.parseSubscripts(this.parseExprAtom(), start, true)
-  if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, false)
+  if (this.eat(tt.parenL)) node.arguments = this.parseExprList(
+    tt.parenR,
+    this.options.features["es7.trailingFunctionCommas"]
+  )
   else node.arguments = empty
   return this.finishNode(node, "NewExpression")
 }

test/core/fixtures/transformation/es7.trailing-function-commas/new-expression/actual.js

@@ -0,0 +1 @@
+new Foo(a, b,);

test/core/fixtures/transformation/es7.trailing-function-commas/new-expression/expected.js

@@ -0,0 +1,3 @@
+"use strict";
+
+new Foo(a, b);