[AsmWriter] Eliminate warning. NFC

This patch eliminates the following warning

lib/IR/AsmWriter.cpp:1128:57: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
                 (StrVal[1] >= '0' && StrVal[1] <= '9')) &&

Reviewers: timshen, rnk, davide
Reviewed By: davide
Subscribers: davide, llvm-commits
Differential Revision: https://reviews.llvm.org/D32337


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300950 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed