[tests] Avoid deprecated except syntax.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187928 91177308-0d34-0410-b5e6-96231b3b80d8
[tests] Make string encoding issues explicit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187929 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Make string encoding issues explicit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187931 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Explicitly convert dict items() result to a list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187932 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Always list individual UNRESOLVED tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187933 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Remove unnecessary list copy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187934 91177308-0d34-0410-b5e6-96231b3b80d8
Unbreak Mac build.

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Really unbreak Mac build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187938 91177308-0d34-0410-b5e6-96231b3b80d8
Reapply r185872 now that the address sanitizer has been changed to support this.

Original commit message:

Stop emitting weak symbols into the "coal" sections.

The Mach-O linker has been able to support the weak-def bit on any symbol for
quite a while now. The compiler however continued to place these symbols into a
"coal" section, which required the linker to map them back to the base section
name.

Replace the sections like this:

  __TEXT/__textcoal_nt   instead use  __TEXT/__text
  __TEXT/__const_coal    instead use  __TEXT/__const
  __DATA/__datacoal_nt   instead use  __DATA/__data

<rdar://problem/14265330>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187939 91177308-0d34-0410-b5e6-96231b3b80d8
[objc-arc] Change 4 iterator methods which return const_iterators to be const methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187940 91177308-0d34-0410-b5e6-96231b3b80d8
[objc-arc] Track if we encountered an additive overflow while computing {TopDown,BottomUp}PathCounts and do nothing if it occured.

rdar://14590914

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187941 91177308-0d34-0410-b5e6-96231b3b80d8