Add more info to assertions

Author: tbaederr

clang/lib/AST/ByteCode/Boolean.h

@@ -82,6 +82,8 @@ class Boolean final {
   Boolean truncate(unsigned TruncBits) const { return *this; }
 
   static Boolean bitcastFromMemory(const std::byte *Buff, unsigned BitWidth) {
+    // Boolean width is currently always 8 for all supported targets. If this
+    // changes we need to get the bool width from the target info.
     assert(BitWidth == 8);
     bool Val = static_cast<bool>(*Buff);
     return Boolean(Val);

clang/lib/AST/ByteCode/Compiler.cpp

@@ -6426,7 +6426,7 @@ bool Compiler<Emitter>::emitBuiltinBitCast(const CastExpr *E) {
   QualType ToType = E->getType();
   std::optional<PrimType> ToT = classify(ToType);
 
-  assert(!DiscardResult && "Implement");
+  assert(!DiscardResult && "Implement DiscardResult mode for bitcasts.");
 
   if (ToType->isNullPtrType()) {
     if (!this->discard(SubExpr))
@@ -6449,7 +6449,7 @@ bool Compiler<Emitter>::emitBuiltinBitCast(const CastExpr *E) {
 
   if (!ToT || ToT == PT_Ptr) {
     // Conversion to an array or record type.
-    assert(false && "Implement");
+    assert(false && "Implement bitcast to pointers.");
   }
   assert(ToT);