Add Bison

grammars.yml

@@ -233,6 +233,8 @@ https://github.com/textmate/applescript.tmbundle:
 https://github.com/textmate/asp.tmbundle:
 - source.asp
 - text.html.asp
+https://github.com/textmate/bison.tmbundle:
+- source.bison
 https://github.com/textmate/c.tmbundle:
 - source.c
 - source.c++

lib/linguist/languages.yml

@@ -240,6 +240,12 @@ Befunge:
   extensions:
   - .befunge
 
+Bison:
+  type: programming
+  tm_scope: source.bison
+  extensions:
+  - .y
+
 BlitzBasic:
   type: programming
   aliases: