Lookahead cleanup. Start work on throws. Fix try expressions. Beginning work on initializer. Some fixes on LLVM types. Moving more target info into C3. Moving alignment into types Introducing a meta type (incomplete). Start work on macros. Splitting '@' from macro name.

src/compiler/llvm_codegen_debug_info.c

@@ -109,6 +109,7 @@ LLVMMetadataRef gencontext_get_debug_type(GenContext *context, Type *type)
 		case TYPE_IXX:
 		case TYPE_UXX:
 		case TYPE_FXX:
+		case TYPE_META_TYPE:
 			UNREACHABLE
 		case TYPE_BOOL:
 			return gencontext_simple_debug_type(context, type, DW_ATE_boolean);