llvm-bcanalyzer: Fix handling of attribute group entries

These were printing as "UnknownCode3", since we were looking for them
inside PARAMATTR blocks instead of PARAMATTR_GROUP blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263597 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed