[analyzer] Add support for more invalidating functions in InnerPointerChecker.

[analyzer] Add support for more invalidating functions in InnerPointerChecker.

According to the standard, pointers referring to the elements of a
`basic_string` may be invalidated if they are used as an argument to
any standard library function taking a reference to non-const
`basic_string` as an argument. This patch makes InnerPointerChecker warn
for these cases.

Differential Revision: https://reviews.llvm.org/D49656

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338259 91177308-0d34-0410-b5e6-96231b3b80d8