Syntax: Fix backticks and code-spans in table cells

This commit...
1. removes `invalid.deprecated` scoping from backticks in table cells
2. fixes code spans treatment in tables.
   They are terminated by
   - `|` cell separator
   - end of line

messages/next.md

@@ -7,6 +7,7 @@ feedback you can use [GitHub issues][issues].
 
 - fix premature block quote termination
 - fix extra backticks when creating fenced code blocks (#749)
+- fix syntax highlighting of single backticks and code-spans in table cells
 
 ## New Features
 

syntaxes/Markdown.sublime-syntax

@@ -9,7 +9,7 @@
 #
 # The scope suffix should indicate which flavor of Markdown the feature came from,
 # to help make this syntax definition easier to maintain.
-name: Markdown
+name: Markdown (MDE)
 scope: text.html.markdown
 hidden: true
 
@@ -2910,14 +2910,22 @@ contexts:
   table-cell-content:
     - match: (?={{balanced_emphasis}})
       push: table-cell-emphasis
-    - match: (?!{{backticks}})`+
-      scope: invalid.deprecated.unescaped-backticks.markdown
+    - include: table-cell-code-spans
     - include: table-cell-separators
     - include: images
-    - include: literals
+    - include: critics
+    - include: math-inline
+    - include: escapes
     - include: links
     - include: markups
 
+  table-cell-code-spans:
+    - match: (`+)[^`|]+(\1)
+      scope: markup.raw.inline.markdown
+      captures:
+        1: punctuation.definition.raw.begin.markdown
+        2: punctuation.definition.raw.end.markdown
+
   table-cell-emphasis:
     - include: emphasis
     - include: immediately-pop

tests/syntax_test_markdown.md

@@ -2921,8 +2921,9 @@ bar | baz
 | f\|oo  |
 | ------ |
 | b `|` az |
-|   ^^^ meta.table markup.raw.inline - meta.table.header-separator
-|          ^ meta.table punctuation.separator.table-cell
+|^^^^^^^^^^^ meta.table.markdown-gfm - markup.raw
+|    ^ punctuation.separator.table-cell.markdown
+|          ^ punctuation.separator.table-cell.markdown
 | b **|** im |
 | <- meta.table punctuation.separator.table-cell
 |   ^^^^^ meta.table markup.bold - punctuation.separator.table-cell
@@ -2991,8 +2992,17 @@ not a table |
 |      ^ punctuation.separator.table-cell
 |           ^ punctuation.separator.table-cell
 |`test | me |
-|^ invalid.deprecated.unescaped-backticks
+|^^^^^^^^^^^^^ meta.table.markdown-gfm - markup.raw
 |      ^ punctuation.separator.table-cell
+| ` ` | ` me ` |
+| <- meta.table.markdown-gfm punctuation.separator.table-cell.markdown
+| ^^^ meta.table.markdown-gfm markup.raw.inline.markdown
+| ^ punctuation.definition.raw.begin.markdown
+|   ^ punctuation.definition.raw.end.markdown
+|     ^ punctuation.separator.table-cell
+|       ^^^^^^ markup.raw.inline.markdown
+|       ^ punctuation.definition.raw.begin.markdown
+|            ^ punctuation.definition.raw.end.markdown
 
 | table | followed by
 paragraph