facebook/hhvm — pull request #4082 by aingram (2014-10-28 08:51:24+00:00)
Title: Fixes soap memory leak

Uses unordered_sets instead of vectors for SoapData collections m_sdls, m_typemaps, and m_encodings. This way when the same pointer is added to the collection multiple times, the collection doesn't unnecessarily consume memory.

Closes #2828