Fix a bug I introduced in my changes, which caused MeasureTokenLength
to crash when given an instantiation location.  Thanks to Fariborz for
the testcase.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63057 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed