https://issues.dlang.org/show_bug.cgi?id=22036

          Issue ID: 22036
           Summary: Color syntax highlight doesn't escape backticks in
                    symbol names
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: ibuclaw@gdcproject.org

This code results in an irregularly highlighted error message:
---
void main () { writef!"`%s"; }
---

Expected error:
    template instance writef!"`%s" template writef is not defined

Actual error:
    template instance writef!"%s" template writef` is not defined

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