A Chromium developer reported a bug which turned out to be a mangling
collision between these two literals:
char s[] = "foo";
char t[32] = "foo";
They may look the same, but for the initialization of t we will (under
some circumstances) use a literal that's extended with zeros, and
both the length and those zeros should be accounted for by the mangling.
This actually makes the mangling code simpler: where it previously had
special logic for null terminators, which are not part of the
StringLiteral, that is now covered by the general algorithm.
(The problem was reported at https://crbug.com/857442)
Differential Revision: https://reviews.llvm.org/D48928
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@336415 91177308-0d34-0410-b5e6-96231b3b80d8