Allow to use wildcard for buildinputs. (#2150)

* Allow to use wildcard for `buildinputs`.

* Add UTs for `kind = "file"` for `api.register`

src/_premake_init.lua

@@ -117,7 +117,7 @@
 	api.register {
 		name = "buildinputs",
 		scope = "config",
-		kind = "list:path",
+		kind = "list:file",
 		tokens = true,
 		pathVars = false,
 	}

tests/_tests.lua

@@ -48,6 +48,7 @@ return {
 	"api/test_boolean_kind.lua",
 	"api/test_containers.lua",
 	"api/test_directory_kind.lua",
+	"api/test_file_kind.lua",
 	"api/test_list_kind.lua",
 	"api/test_path_kind.lua",
 	"api/test_register.lua",

tests/api/test_file_kind.lua

@@ -0,0 +1,47 @@
+--
+-- tests/api/test_file_kind.lua
+-- Tests the file API value type.
+-- Copyright (c) 2023 the Premake project
+--
+
+local p = premake
+local suite = test.declare("api_file_kind")
+local api = p.api
+
+--
+-- Setup and teardown
+--
+
+function suite.setup()
+	api.register {
+		name = "testapi",
+		kind = "file",
+		list = true,
+		scope = "project"
+	}
+	test.createWorkspace()
+end
+
+function suite.teardown()
+	testapi = nil
+end
+
+--
+-- Values should be converted to absolute paths,
+-- relative to the currently running script.
+--
+function suite.convertsToAbsolute()
+	testapi "self/local"
+
+	test.isequal({os.getcwd() .. "/self/local"}, api.scope.project.testapi)
+end
+
+
+--
+-- Check expansion of wildcards.
+--
+function suite.expandsWildcards()
+	testapi (_TESTS_DIR .. "/api/*")
+
+	test.istrue(table.contains(api.scope.project.testapi, _TESTS_DIR .. "/api/test_file_kind.lua"))
+end