[PATCH] Make the plugin loader limit its symbol search to the specified module.

[Rafael Ávila de Espíndola]

Looks like the only use of lgetAddressOfSymbol is in clang/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp so I have no objections to changing it, but as Reid mentioned, we should probably make the DynamicLibrary type non-copyable.

http://reviews.llvm.org/D5030