A few more lgtm fixes.

mesonbuild/compilers/cpp.py

@@ -175,7 +175,6 @@ class IntelCPPCompiler(IntelCompiler, CPPCompiler):
 class VisualStudioCPPCompiler(VisualStudioCCompiler, CPPCompiler):
     def __init__(self, exelist, version, is_cross, exe_wrap, is_64):
         self.language = 'cpp'
-        CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrap)
         VisualStudioCCompiler.__init__(self, exelist, version, is_cross, exe_wrap, is_64)
         self.base_options = ['b_pch'] # FIXME add lto, pgo and the like
 

mesonbuild/interpreter.py

@@ -2049,6 +2049,7 @@ class Interpreter(InterpreterBase):
                         # we won't actually read all the build files.
                         return fallback_dep
                 if not dep:
+                    assert(exception is not None)
                     raise exception
 
         # Only store found-deps in the cache

mesonbuild/modules/gnome.py

@@ -984,7 +984,7 @@ class GnomeModule(ExtensionModule):
                 cmd += ['--prefix', value]
             elif arg == 'extra_args':
                 if new_genmarshal:
-                    cmd += mesonlib.stringlistify(value, [])
+                    cmd += mesonlib.stringlistify(value)
                 else:
                     mlog.warning('The current version of GLib does not support extra arguments \n'
                                  'for glib-genmarshal. You need at least GLib 2.53.3. See ',