TableGen: Resolve all template args simultaneously in ResolveMulticlassDefARgs

Summary:
Use the new resolver interface more explicitly, and avoid traversing
all the initializers multiple times.

Change-Id: I679e86988b309d19f25e6cca8b0b14ea150198a6

Reviewers: arsenm, craig.topper, tra, MartinO

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D43654

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@326708 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed