avro

AVRO-1089. C: Remove performance penalty with resolved writer arrays

The problem was that an internal array wasn't being cleared, and was growing not
just with the size of each test case, but with the number of test cases.
Iterating through that array was causing the slowdown.


git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1416022 13f79535-47bb-0310-9956-ffa450edef68