Fix vector type comment edit

Analysis/src/EmbeddedBuiltinDefinitions.cpp

@@ -237,7 +237,7 @@ declare class vector end
 )BUILTIN";
 
 static const std::string kBuiltinDefinitionVectorType = R"BUILTIN(
--- TODO: this will be replaced with a built-in primitive type
+-- While vector would have been better represented as a built-in primitive type, type solver class handling covers most of the properties
 declare class vector
     x: number
     y: number