Valgrind errors - DRIZZLEparse

[Lee Bieber]

Found in several tests cases, a few examples are below:

count_distinct3.test
=10792== 240 bytes in 10 blocks are definitely lost in loss record 5 of 9
==10792== at 0x4A06D9C: operator new(unsigned long, std::nothrow_t const&) (vg_replace_malloc.c:250)
==10792== by 0x541A96: DRIZZLEparse(void*) (sql_yacc.yy:4402)
==10792== by 0x51447F: mysql_parse(Session*, char const*, unsigned int, char const**) (sql_parse.cc:1851)
==10792== by 0x514EB0: dispatch_command(enum_server_command, Session*, char*, unsigned int) (sql_parse.cc:217)
==10792== by 0x4DD68E: Session::executeStatement() (session.cc:728)
==10792== by 0x4DE626: Session::run() (session.cc:600)
==10792== by 0x6EFA21: session_thread (multi_thread.cc:102)
==10792== by 0x3895A06869: start_thread (in /lib64/libpthread-2.10.1.so)
==10792== by 0x38952DE25C: clone (in /lib64/libc-2.10.1.so)

innodb.test
==11906== 2,424 bytes in 101 blocks are definitely lost in loss record 7 of 13
==11906== at 0x4A06D9C: operator new(unsigned long, std::nothrow_t const&) (vg_replace_malloc.c:250)
==11906== by 0x5419FD: DRIZZLEparse(void*) (sql_yacc.yy:4424)
==11906== by 0x51447F: mysql_parse(Session*, char const*, unsigned int, char const**) (sql_parse.cc:1851)
==11906== by 0x514EB0: dispatch_command(enum_server_command, Session*, char*, unsigned int) (sql_parse.cc:217)
==11906== by 0x4DD68E: Session::executeStatement() (session.cc:728)
==11906== by 0x4DE626: Session::run() (session.cc:600)
==11906== by 0x6EFA21: session_thread (multi_thread.cc:102)
==11906== by 0x3895A06869: start_thread (in /lib64/libpthread-2.10.1.so)
==11906== by 0x38952DE25C: clone (in /lib64/libc-2.10.1.so)

==11906== 2,616 bytes in 109 blocks are definitely lost in loss record 9 of 13
==11906== at 0x4A06D9C: operator new(unsigned long, std::nothrow_t const&) (vg_replace_malloc.c:250)
==11906== by 0x541A96: DRIZZLEparse(void*) (sql_yacc.yy:4402)
==11906== by 0x51447F: mysql_parse(Session*, char const*, unsigned int, char const**) (sql_parse.cc:1851)
==11906== by 0x514EB0: dispatch_command(enum_server_command, Session*, char*, unsigned int) (sql_parse.cc:217)
==11906== by 0x4DD68E: Session::executeStatement() (session.cc:728)
==11906== by 0x4DE626: Session::run() (session.cc:600)
==11906== by 0x6EFA21: session_thread (multi_thread.cc:102)
==11906== by 0x3895A06869: start_thread (in /lib64/libpthread-2.10.1.so)
==11906== by 0x38952DE25C: clone (in /lib64/libc-2.10.1.so)

innodb_notembedded.test
==19571== 792 bytes in 33 blocks are definitely lost in loss record 6 of 10
==19571== at 0x4A06D9C: operator new(unsigned long, std::nothrow_t const&) (vg_replace_malloc.c:250)
==19571== by 0x541A96: DRIZZLEparse(void*) (sql_yacc.yy:4402)
==19571== by 0x51447F: mysql_parse(Session*, char const*, unsigned int, char const**) (sql_parse.cc:1851)
==19571== by 0x514EB0: dispatch_command(enum_server_command, Session*, char*, unsigned int) (sql_parse.cc:
217)
==19571== by 0x4DD68E: Session::executeStatement() (session.cc:728)
==19571== by 0x4DE626: Session::run() (session.cc:600)
==19571== by 0x6EFA21: session_thread (multi_thread.cc:102)
==19571== by 0x3895A06869: start_thread (in /lib64/libpthread-2.10.1.so)
==19571== by 0x38952DE25C: clone (in /lib64/libc-2.10.1.so)
==19571==