Use non-member begin/end for a slight readability improvement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220140 91177308-0d34-0410-b5e6-96231b3b80d8
New round of fixes for "Always compile debuginfo-tests for the host triple"

clang tests were breaking, at least when compiling clang only, from an
installed llvm. Make the lit.cfg script deal with the case when we don't
have a host_triple available.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220148 91177308-0d34-0410-b5e6-96231b3b80d8
CodeGen: ConstStructBuilder must verify packed constraints after padding

Before, ConstStructBuilder::AppendBytes would check packed constraints
prior to padding being added before the field's offset.  However, adding
this padding might force our struct to be packed.  Because we wouldn't
check *after* adding padding, ConstStructBuilder would be in an
inconsistent state leading to a crash.

This fixes PR21300.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220153 91177308-0d34-0410-b5e6-96231b3b80d8
Use the triple's isiOS() method instead of checking the value directly. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220158 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Tweak MallocSizeOfChecker to not warn when using sizeof(void*) to allocate a bunch of any pointer type.

This suppresses a common false positive when analyzing libc++.

Along the way, introduce some tests to show this checker actually
works with C++ static_cast<>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220160 91177308-0d34-0410-b5e6-96231b3b80d8
Merge branch 'master', remote-tracking branch 'trunk/master'