[PATCH] [compiler-rt] Don't instrument globals from __objc_classname

[David Majnemer]

================
Comment at: lib/Transforms/Instrumentation/AddressSanitizer.cpp:1068
@@ -1068,1 +1067,3 @@
+    if (Section.startswith("__TEXT,") &&
+        Section.endswith(",cstring_literals")) {
       DEBUG(dbgs() << "Ignoring a cstring literal: " << *G << "\n");
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This is not reliable, it could end with ", cstring_literals".

Can you please use `MCSectionMachO::ParseSectionSpecifier` to parse the section string instead?

http://reviews.llvm.org/D6488