[analyzer] Though C++ inlining is enabled, don't inline ctors and dtors.

More generally, this adds a new configuration option 'c++-inlining', which
controls which C++ member functions can be considered for inlining. This
uses the new -analyzer-config table, so the cc1 arguments will look like this:

... -analyzer-config c++-inlining=[none|methods|constructors|destructors]

Note that each mode implies that all the previous member function kinds
will be inlined as well; it doesn't make sense to inline destructors
without inlining constructors, for example.

The default mode is 'methods'.

llvm-svn: 163004