Commit 837166319d

@@ -1261,6 +1261,10 @@ void init_fn_type_id(FnTypeId *fn_type_id, AstNode *proto_node, size_t param_cou
     fn_type_id->param_info = allocate_nonzero<FnTypeParamInfo>(param_count_alloc);
     fn_type_id->next_param_index = 0;
     fn_type_id->is_var_args = fn_proto->is_var_args;
+
+    // We set param_info to 0, as param_info[i]->type is checked for null
+    // when checking if a parameters type has been resolved.
+    memset(fn_type_id->param_info, 0, sizeof(fn_type_id->param_info[i]) * fn_type_id->param_count);
 }
 
 static bool analyze_const_align(CodeGen *g, Scope *scope, AstNode *node, uint32_t *result) {