WL#3413: Stored Procedures: Compiler

Compile stored procedures.

One established way to do this is to translate SQL procedural statements to
valid statements in some other language (such as C), write to a file, call the
compiler for the other language, save a reference to the resultant object file
in mysql.proc, and call it whenever CALL happens. The result should be an
increase in speed, but you need that compiler.