Bug 861032 - Fix -Wreinterpret-base-class warning on Codegen.py. r=bz

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extra : rebase_source : c05d51d8aeed182b85333a347f0b1dfb5d6b1ef9
Bug 861041 - Fix -Wunused-function error in XPCQuickStubs.h. r=bz

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extra : rebase_source : d51c372a236b67fdaf91535bc967beb9621c671d
Bug 859595 - Implement the alternate names for AudioBufferSourceNode, AudioContext and AudioParam; r=bzbarsky

Let this be mentioned in our code base history that I wrote this patch
with tears in my eyes.  This is the saddest thing I've ever had to do to
Gecko. :(

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extra : rebase_source : 798e5b1dc8af51a399189dd05bc59ac077670820