Loosen up check so that we can pass on platforms that generate

Loosen up check so that we can pass on platforms that generate
slightly more verbose than needed line tables, e.g.:

Address            Line   Column File   ISA Discriminator Flags
------------------ ------ ------ ------ --- ------------- -------------
0x0000000000000000      1      0      1   0             0  is_stmt
0x0000000000000000      1      0      1   0             0  is_stmt prologue_end
0x0000000000000010      2      0      1   0             0  is_stmt
0x0000000000000018      4      0      1   0             0  is_stmt

these should probably be looked at, but it isn't affecting the correctness
of the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205546 91177308-0d34-0410-b5e6-96231b3b80d8