Translate copy-files, add_soong_config_namespace and add_soong_config_var_value macros

Bug: 194521362
Test: internal

Change-Id: I88fb62f057476d96dfb056813a900e8497e7bbb9

mk2rbc/types.go

@@ -31,6 +31,16 @@ const (
 	starlarkTypeVoid    starlarkType = iota
 )
 
+type hiddenArgType int
+
+const (
+	// Some functions have an implicitly emitted first argument, which may be
+	// a global ('g') or configuration ('cfg') variable.
+	hiddenArgNone   hiddenArgType = iota
+	hiddenArgGlobal hiddenArgType = iota
+	hiddenArgConfig hiddenArgType = iota
+)
+
 type varClass int
 
 const (