Fix crash in runnable/arrayop
Quick fix for bswap cannot be interpreted at compile time
Enable C++ mangling
Fix virtual table and type info for c++ classes
Simplify vaarg support on X86_64
Fix DMD Issue 11394 - NRVO should work for object field initialization in constructor
Fixed DMD Issue 12023 - template mixin fails within template class
Ignore nested functions with a parent that had errors during semantic3.
Fix DMD Issue 3991 - Void initializers in unions considered overlapping
DMD Issue 11284 - add -allinst compiler switch
Fix crashes when a variable is accessed by nested function inside __traits(compile) or typeof
Merge remote-tracking branch 'alexey/testSuiteFixes'