Highlight __builtins__

Author: 1st1

grammars/MagicPython.cson

@@ -1627,7 +1627,7 @@ repository:
       (?x)
         (\\.)?\\b(
           __(?:
-            all | bases | class | code | debug | defaults | dict
+            all | bases | builtins | class | code | debug | defaults | dict
             | doc | file | func | kwdefaults | members
             | metaclass | methods | module | mro | name
             | qualname | self | signature | slots | subclasses

grammars/MagicPython.tmLanguage

@@ -2561,7 +2561,7 @@ indirectly through syntactic constructs
         <string>(?x)
   (\.)?\b(
     __(?:
-      all | bases | class | code | debug | defaults | dict
+      all | bases | builtins | class | code | debug | defaults | dict
       | doc | file | func | kwdefaults | members
       | metaclass | methods | module | mro | name
       | qualname | self | signature | slots | subclasses

grammars/src/MagicPython.syntax.yaml

@@ -1107,7 +1107,7 @@ repository:
       (?x)
         (\.)?\b(
           __(?:
-            all | bases | class | code | debug | defaults | dict
+            all | bases | builtins | class | code | debug | defaults | dict
             | doc | file | func | kwdefaults | members
             | metaclass | methods | module | mro | name
             | qualname | self | signature | slots | subclasses

test/builtins/builtins3.py

@@ -2,6 +2,9 @@
 some.__bases__
 some.__class__
 assert __debug__
+__builtins__
+__builtins__.len
+print(__builtins__)
 some.__dict__
 some.__doc__
 some.__file__
@@ -50,6 +53,15 @@
 assert        : keyword.control.flow.python, source.python
               : source.python
 __debug__     : source.python, support.variable.magic.python
+__builtins__  : source.python, support.variable.magic.python
+__builtins__  : source.python, support.variable.magic.python
+.             : source.python
+len           : source.python
+              : source.python
+print         : meta.function-call.python, source.python, support.function.builtin.python
+(             : meta.function-call.python, punctuation.definition.arguments.begin.python, source.python
+__builtins__  : meta.function-call.arguments.python, meta.function-call.python, source.python, support.variable.magic.python
+)             : meta.function-call.python, punctuation.definition.arguments.end.python, source.python
 some          : source.python
 .             : source.python
 __dict__      : source.python, support.variable.magic.python