[XRay] Fix the test func-id-utils.cc on PPC.
[XRay] Fix the test func-id-utils.cc on PPC.

Summary:
The test fails on PPC, because the address of a function may vary
depending on whether the "taker" shares the same ToC (roughly, in the
same "module") as the function.

Therefore the addresses of the functions taken in func-id-utils.cc may be
different from the addresses taken in xray runtime.

Change the test to be permissive on address comparison.

Reviewers: dberris, echristo

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33026

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@302686 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt