Add MLIR grammar

.gitmodules

@@ -725,6 +725,9 @@
 [submodule "vendor/grammars/mercury-tmlanguage"]
 	path = vendor/grammars/mercury-tmlanguage
 	url = https://github.com/sebgod/mercury-tmlanguage
+[submodule "vendor/grammars/mlir-grammar"]
+	path = vendor/grammars/mlir-grammar
+	url = https://github.com/jpienaar/mlir-grammar
 [submodule "vendor/grammars/monkey"]
 	path = vendor/grammars/monkey
 	url = https://github.com/gingerbeardman/monkey.tmbundle

grammars.yml

@@ -632,6 +632,8 @@ vendor/grammars/mediawiki.tmbundle:
 - text.html.mediawiki
 vendor/grammars/mercury-tmlanguage:
 - source.mercury
+vendor/grammars/mlir-grammar:
+- source.mlir
 vendor/grammars/monkey:
 - source.monkey
 vendor/grammars/moonscript-tmbundle:

lib/linguist/languages.yml

@@ -2926,6 +2926,13 @@ MAXScript:
   tm_scope: source.maxscript
   ace_mode: text
   language_id: 217
+MLIR:
+  type: programming
+  extensions:
+  - ".mlir"
+  tm_scope: source.mlir
+  ace_mode: text
+  language_id: 448253929
 MQL4:
   type: programming
   color: "#62A8D6"