Tell GitHub that *.inc.rs files are generated

... and rename hir_type_generated.rs so it gets picked up by the
glob.

This mostly changes how GitHub renders diffs for generated files on
the web interface.

See: https://docs.github.com/en/repositories/working-with-files/managing-files/customizing-how-changed-files-appear-on-github

.gitattributes

@@ -1,5 +1,6 @@
 *.gemspec diff=ruby
 *.rb diff=ruby
+*.inc.rs linguist-generated=true
 bin svn-properties=svn:ignore=ruby
 bin/* diff=ruby
 tool/update-deps diff=ruby

zjit/src/gen_hir_type.rb

@@ -1,4 +1,4 @@
-# Generate src/hir_type_generated.rs. To do this, we build up a DAG that
+# Generate hir_type.inc.rs. To do this, we build up a DAG that
 # represents a slice of the Ruby type hierarchy that we care about optimizing.
 # This also includes primitive values such as C booleans, int32, and so on.
 

zjit/src/hir_type.rs

@@ -60,8 +60,7 @@ pub struct Type {
     spec: Specialization
 }
 
-// TODO(max): Figure out how to silence the non-upper-case globals warning
-include!("hir_type_generated.rs");
+include!("hir_type.inc.rs");
 
 /// Get class name from a class pointer.
 fn get_class_name(class: Option<VALUE>) -> String {