Found a few more places in the parser (insert, replace and update) where
local stored procedure variables should not be recognized.


mysql-test/r/sp-error.result:
  Test cases for BUG#2329
mysql-test/r/sp.result:
  New test case for certain context dependencies for symbols.
mysql-test/t/sp-error.test:
  Test cases for BUG#2329
mysql-test/t/sp.test:
  New test case for certain context dependencies for symbols.
sql/sql_yacc.yy:
  Found a few more places where local SP variables should not be recognized.