Merge pull request #23109 from seanm:misc-warnings

* Fixed clang -Wnewline-eof warnings
* Fixed all trivial clang -Wextra-semi and -Wc++98-compat-extra-semi warnings
* Removed trailing semi from various macros
* Fixed various -Wunused-macros warnings
* Fixed some trivial -Wdocumentation warnings
* Fixed some -Wdocumentation-deprecated-sync warnings
* Fixed incorrect indentation
* Suppressed some clang warnings in 3rd party code
* Fixed QRCodeEncoder::Params documentation.

---------

Co-authored-by: Alexander Smorkalov <alexander.smorkalov@xperience.ai>

modules/python/src2/gen2.py

@@ -432,7 +432,7 @@ class ClassInfo(object):
         if self.constructor is not None:
             constructor_name = self.constructor.get_wrapper_name()
 
-        return 'CVPY_TYPE({}, {}, {}, {}, {}, {}, "{}");\n'.format(
+        return 'CVPY_TYPE({}, {}, {}, {}, {}, {}, "{}")\n'.format(
             self.export_name,
             self.class_id,
             self.cname if self.issimple else "Ptr<{}>".format(self.cname),
@@ -1291,7 +1291,7 @@ class PythonWrapperGenerator(object):
         code = ""
         if re.sub(r"^cv\.", "", enum_name) != wname:
             code += "typedef {0} {1};\n".format(cname, wname)
-        code += "CV_PY_FROM_ENUM({0});\nCV_PY_TO_ENUM({0});\n\n".format(wname)
+        code += "CV_PY_FROM_ENUM({0})\nCV_PY_TO_ENUM({0})\n\n".format(wname)
         self.code_enums.write(code)
 
     def save(self, path, name, buf):