Remove ancii color code from SemanticDB

Author: tanishiking

compiler/src/dotty/tools/dotc/semanticdb/DiagnosticOps.scala

@@ -6,15 +6,17 @@ import dotty.tools.dotc.interfaces.Diagnostic.{ERROR, INFO, WARNING}
 import dotty.tools.dotc.core.Contexts.Context
 
 object DiagnosticOps:
+  private val asciiColorCodes = "\u001B\\[[;\\d]*m".r
   extension (d: Diagnostic)
     def toSemanticDiagnostic(using Context): s.Diagnostic =
       val severity = d.level match
         case ERROR => s.Diagnostic.Severity.ERROR
         case WARNING => s.Diagnostic.Severity.WARNING
         case INFO => s.Diagnostic.Severity.INFORMATION
         case _ => s.Diagnostic.Severity.INFORMATION
+      val msg = asciiColorCodes.replaceAllIn(d.msg.message, m => "")
       s.Diagnostic(
         range = Scala3.range(d.pos.span, d.pos.source),
         severity = severity,
-        message = d.msg.message
+        message = msg
       )

tests/semanticdb/metac.expect

@@ -757,7 +757,7 @@ Occurrences:
 [2:13..2:29): deprecatedMethod -> _empty_/Deprecated.deprecatedMethod().
 
 Diagnostics:
-[2:13..2:29): [warning] method deprecatedMethod in object Deprecated is deprecated
+[2:13..2:29): [warning] method deprecatedMethod in object Deprecated is deprecated
 
 expect/Empty.scala
 ------------------