Bug 825699 - jsapi-tests: Silence two bogus error reports to stderr. r=Waldo.
Bug 828466 - Remove some ParseNode morphing. Part 1, FoldConstants. r=Waldo.
Bug 828466 - Remove some ParseNode morphing. Part 2, empty statements. r=Waldo with apparently successful fuzz-testing.
Bug 828466 - Remove some ParseNode morphing. Part 3, ParseNode::append. r=Waldo.
Bug 790629 - Fix the value of this in generator-expressions. r=Waldo.