Fix up name mangling/unmangling for extensions (#493)

* Fix up name mangling/unmangling for extensions

This is required for the unmangling we do on some builtin function names.
The work here is mostly just a band-aid, and a more comprehensive pass over the name mangling/unmangling code is required to make any of this robust.

* fixup: UNREACHABLE_RETURN argument

1 files changed, 1 insertions, 0 deletions

diff --git a/source/slang/mangle.cpp b/source/slang/mangle.cpp
index 7a50903a0..d3e2f833f 100644
--- a/source/slang/mangle.cpp
+++ b/source/slang/mangle.cpp
@@ -170,6 +170,7 @@ namespace Slang
             // (both types and values) to be mangled in terms of their
             // "depth" (how many outer generics) and "index" (which
             // parameter are they at the specified depth).
+            emitRaw(context, "K");
             emitName(context, genericParamIntVal->declRef.GetName());
         }
         else if( auto constantIntVal = dynamic_cast<ConstantIntVal*>(val) )