[WebAssembly] Make pthread imply bulk-memory, mutable-globals
Summary:
This paves the way for using passive segments in pthread builds, which
will make separate memory files unnecessary. Mutable globals are also
necessary for the upcoming implementation of TLS.
Reviewers: aheejin, dschuff
Subscribers: sbc100, jgravelle-google, sunfish, jfb, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64586
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@365935
91177308-0d34-0410-b5e6-
96231b3b80d8