[debugger] Add intrinsic for creating a byte array (mono/mono#15591)

Fixes mono/mono#15268



Commit migrated from mono/mono@4917c08

src/mono/mono/mini/debugger-agent.c

@@ -399,7 +399,8 @@ typedef enum {
 	CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY = 4,
 	CMD_APPDOMAIN_CREATE_STRING = 5,
 	CMD_APPDOMAIN_GET_CORLIB = 6,
-	CMD_APPDOMAIN_CREATE_BOXED_VALUE = 7
+	CMD_APPDOMAIN_CREATE_BOXED_VALUE = 7,
+	CMD_APPDOMAIN_CREATE_BYTE_ARRAY = 8,
 } CmdAppDomain;
 
 typedef enum {
@@ -7219,6 +7220,21 @@ domain_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
 		buffer_add_objid (buf, (MonoObject*)o);
 		break;
 	}
+	case CMD_APPDOMAIN_CREATE_BYTE_ARRAY: {
+		ERROR_DECL (error);
+		MonoArray *arr;
+		gpointer elem;
+		domain = decode_domainid (p, &p, end, NULL, &err);
+		uintptr_t size = 0;
+		int len = decode_int (p, &p, end);
+		size = len;
+		arr = mono_array_new_full_checked (mono_domain_get (), mono_class_create_array (mono_get_byte_class(), 1), &size, NULL, error);
+		elem = mono_array_addr_internal (arr, guint8, 0);
+		memcpy (elem, p, len);
+		p += len;
+		buffer_add_objid (buf, (MonoObject*) arr);
+		break;
+	}
 	case CMD_APPDOMAIN_CREATE_BOXED_VALUE: {
 		ERROR_DECL (error);
 		MonoClass *klass;
@@ -9377,7 +9393,8 @@ static const char* appdomain_cmds_str[] = {
 	"GET_ENTRY_ASSEMBLY",
 	"CREATE_STRING",
 	"GET_CORLIB",
-	"CREATE_BOXED_VALUE"
+	"CREATE_BOXED_VALUE",
+	"CREATE_BYTE_ARRAY",
 };
 
 static const char* assembly_cmds_str[] = {