Force reinterpret-cast to reverse the cast in FunctionDefinition.semantic.

With LDC 1.42.0, the direct cast from Statement to FunctionDefintion returns null, causing a segmentation fault later on. Casting to void* first forces a reinterpret cast and is symmetric with the code in FunctionDefinition.semantic().

Author: s-ludwig

engine/source/dmdscript/expression.d

@@ -608,7 +608,7 @@ class FunctionLiteral : Expression
 
   override Expression semantic(Scope *sc)
   {
-      func = cast(FunctionDefinition)(func.semantic(sc));
+      func = cast(FunctionDefinition)cast(void*)func.semantic(sc);
       return this;
   }