[analyzer] NFC: Run many existing C++ tests with a custom operator new().
[analyzer] NFC: Run many existing C++ tests with a custom operator new().

In order to provide more test coverage for inlined operator new(), add more
run-lines to existing test cases, which would trigger our fake header
to provide a body for operator new(). Most of the code should still behave
reasonably. When behavior intentionally changes, #ifs are provided.

Differential Revision: https://reviews.llvm.org/D42221


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@323376 91177308-0d34-0410-b5e6-96231b3b80d8

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