add FeatureNew decorators for various modules that were lacking them

Going back to 0.38, though some of them are far older. The original
implementation of FeatureNew only added backdated feature checks that
far, anyway.

mesonbuild/modules/cmake.py

@@ -212,6 +212,7 @@ class CmakeModule(ExtensionModule):
     cmake_detected = False
     cmake_root = None
 
+    @FeatureNew('CMake Module', '0.50.0')
     def __init__(self, interpreter):
         super().__init__(interpreter)
         self.methods.update({

mesonbuild/modules/dlang.py

@@ -21,12 +21,14 @@ import os
 from . import ExtensionModule
 from .. import dependencies
 from .. import mlog
+from ..interpreterbase import FeatureNew
 from ..mesonlib import Popen_safe, MesonException
 
 class DlangModule(ExtensionModule):
     class_dubbin = None
     init_dub = False
 
+    @FeatureNew('Dlang Module', '0.48.0')
     def __init__(self, interpreter):
         super().__init__(interpreter)
         self.methods.update({

mesonbuild/modules/fs.py

@@ -41,6 +41,7 @@ if T.TYPE_CHECKING:
 
 class FSModule(ExtensionModule):
 
+    @FeatureNew('Fs Module', '0.53.0')
     def __init__(self, interpreter: 'Interpreter') -> None:
         super().__init__(interpreter)
         self.methods.update({

mesonbuild/modules/python3.py

@@ -16,12 +16,13 @@ import sysconfig
 from .. import mesonlib
 
 from . import ExtensionModule
-from ..interpreterbase import noKwargs, permittedKwargs, FeatureDeprecated
+from ..interpreterbase import noKwargs, permittedKwargs, FeatureDeprecated, FeatureNew
 from ..build import known_shmod_kwargs
 from ..programs import ExternalProgram
 
 
 class Python3Module(ExtensionModule):
+    @FeatureNew('python3 module', '0.38.0')
     @FeatureDeprecated('python3 module', '0.48.0')
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)

mesonbuild/modules/qt6.py

@@ -13,10 +13,12 @@
 # limitations under the License.
 
 from .qt import QtBaseModule
+from ..interpreterbase import FeatureNew
 
 
 class Qt6Module(QtBaseModule):
 
+    @FeatureNew('Qt6 Module', '0.57.0')
     def __init__(self, interpreter):
         QtBaseModule.__init__(self, interpreter, qt_version=6)