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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
Add some ARM and MIPS64 druntime changes.

Includes some of the EH changes for ARM from issue #489.
Adds thread support for MIPS64.
Fix build with LLVM 3.5

Method codegenModule() used a FunctionPassManager instead of a PassManager. This results in an assertion failure.
Also initialize one more pass.
Merge branch 'release-0.13.0'
More ARM fixes
Merge pull request #636 from bountysource-support/patch-1

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Fix AtomicCmpXchg for LLVM 3.5

A weak variant was added to LLVM 3.5 and the return type changed to { iN, i1 }.
Just extract the value from this struct.
Merge remote-tracking branch 'alexey/testSuiteFixes'
Merge branch 'release-0.13.0'