This change parses calls in CxxParser by using the class ASTBodyVisitor which traverses the Stmts and Exprs in the body
of the function and method declarations.
The calls include:
* calls in functions
* calls in methods
* constructor calls
* constructor calls in initialization lists
* implicit constructor calls of fields
* calls to operators
* global constructor calls of global variables
* global function calls for global variables
The calls don't include:
* destructor calls
* some calls to implicit constructors and copy constructors
fortune cookie message = Don't be afraid to take that big step.
Eberhard Graether
af54da4ce4