Move windows С++ mangle to frontend
Fix Issue 11939 - selective imports inside a scope(failure) block cause compiler segfault
Merge pull request #3206 from yebblies/issue11939

Issue 11939 - selective imports inside a scope(failure) block cause compiler segfault
different changes
Merge pull request #3160 from IgorStepanov/cppmanglewindows

Move C++ mangle to frontend in windows
Hack around vtable emission problems
Do not put comments between the if body and 'else'
Expand huge if condition
Move comments from conditions
Clean up comments inside expressions
Don't put comments inside if conditions
Move another comment out of an if condition
Move comment out of if condition