Tidy up exceptions to be more accurate.

volatility/framework/plugins/windows/poolscanner.py

@@ -153,9 +153,6 @@ def os_distinguisher(version_check: Callable[[Tuple[int, ...]], bool],
         except (AttributeError, ValueError, TypeError):
             vollog.log(constants.LOGLEVEL_VVV, "Windows PE version data is not available")
 
-        if not fallback_checks:
-            raise ValueError("No fallback methods for os_distinguishing provided")
-
         # fall back to the backup method, if necessary
         for name, member, response in fallback_checks:
             if member is None:

volatility/framework/plugins/windows/verinfo.py

@@ -52,7 +52,7 @@ class VerInfo(interfaces.plugins.PluginInterface):
         """
 
         if layer_name is None:
-            raise ValueError("Layer must be a string not None")
+            raise TypeError("Layer must be a string not None")
 
         pe_data = io.BytesIO()