ChangeLog:
Better error/warning locations
Locations for error and warning messages have been improved.
show error improvement
The show command now correctly prints all possible commands to define a type when requested to show a type that doesn't exist.
register warnings
A deprecated warning is now printed for a register array, enum, class, struct, union, pointer, pointer to member, reference, and rvalue reference between C++11 and C++14. (Previously, a warning was printed only for built-in types and typedefs.)
K&R function parameter printed as int
For functions having K&R C typeless parameters, int is now printed in C89 and later since such parameters are implicitly int.
show using before C++11
A show using before C++11 now prints an error.
Help output
Tweaked help output.
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