[Ruby] Safe accessor

Fixes #3813

Ruby/Ruby.sublime-syntax

@@ -184,7 +184,7 @@ contexts:
       pop: true
 
   name-parts:
-    - match: ({{identifier}})?(?:(::)|(\.))
+    - match: ({{identifier}})?(?:(::)|(&?\.))
       captures:
         1: support.other.namespace.ruby
         2: punctuation.accessor.double-colon.ruby
@@ -572,7 +572,7 @@ contexts:
     - match: '!+|&&|\|\|'
       scope: keyword.operator.logical.ruby
       push: after-operator
-    - match: '[~&|^]'
+    - match: '(?:[~|^]|&(?!\.))'
       scope: keyword.operator.bitwise.ruby
       push: after-operator
     - match: \?
@@ -626,7 +626,7 @@ contexts:
         - match: ''
           set: after-identifier
     # This consumes attribute access so we don't need a lookbehind for .
-    - match: \.(?={{identifier}}{{method_punctuation}})
+    - match: '&?\.(?={{identifier}}{{method_punctuation}})'
       scope: punctuation.accessor.dot.ruby
       push:
         - include: well-known-methods
@@ -637,7 +637,7 @@ contexts:
     - match: '{{identifier}}{{method_punctuation}}'
     # This consumes module/class accessor so we don't need a lookbehind for ::
       push: after-identifier
-    - match: \.
+    - match: '&?\.'
       scope: punctuation.accessor.dot.ruby
     - match: '::'
       scope: punctuation.accessor.double-colon.ruby