Improved extension virtual override

IDEHelper/Compiler/BfModule.cpp

@@ -24431,6 +24431,8 @@ void BfModule::DoMethodDeclaration(BfMethodDeclaration* methodDeclaration, bool
 									}
 									else if (checkMethod->GetMethodDeclaration() == NULL)
 										silentlyAllow = true;
+									else if (methodDef->mIsOverride)
+										silentlyAllow = true;
 									else
 										extensionWarn = true;
 								}

IDEHelper/Tests/src/Extensions.bf

@@ -204,7 +204,7 @@ namespace Tests
 				return mTVal;
 			}
 
-			public int GetB()
+			public new int GetB()
 			{
 				return 2;
 			}

IDEHelper/Tests/src/FuncRefs.bf

@@ -201,7 +201,7 @@ namespace Tests
 
 		extension MethodRefHolder<T> where T : Delegate
 		{
-			public void Dispose()
+			public new void Dispose()
 			{
 				delete mVal;
 			}