Bug #43203  	Overflow from auto incrementing causes server segv

Detailed revision comments:

r4325 | sunny | 2009-03-02 02:28:52 +0200 (Mon, 02 Mar 2009) | 10 lines
branches/5.1: Bug#43203: Overflow from auto incrementing causes server segv
It was not a SIGSEGV but an assertion failure. The assertion was checking
the invariant that *first_value passed in by MySQL doesn't contain a value
that is greater than the max value for that type. The assertion has been
changed to a check and if the value is greater than the max we report a
generic AUTOINC failure.

rb://93
Approved by Heikki