[Issue 20296] Segfault when using variadic D functions with extern(C++) linkage

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20296

moonlightsentinel at disroot.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |moonlightsentinel at disroot.o
                   |                            |rg
           Severity|critical                    |regression

--- Comment #3 from moonlightsentinel at disroot.org ---
This is actually a regression:

Up to      2.060  : Status -6 with output: dmd: cppmangle.c:192: virtual void
Type::toCppMangle(OutBuffer*, CppMangleState*): Assertion `deco' failed.
2.061   to 2.063  : Success and no output
2.064   to 2.066.0: Segfault and no output
2.067.1 to 2.083.1: Success and no output
Since      2.084.1: Segfault and no output

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