Make symbols have predictable hash codes.

DarkDimius · DarkDimius · commit 04b12536bc34 · 2015-07-13T15:31:16.000+02:00
diff --git a/src/dotty/tools/dotc/core/Symbols.scala b/src/dotty/tools/dotc/core/Symbols.scala
@@ -503,6 +503,8 @@ object Symbols {
     def showKind(implicit ctx: Context): String = ctx.kindString(this)
     def showName(implicit ctx: Context): String = ctx.nameString(this)
     def showFullName(implicit ctx: Context): String = ctx.fullNameString(this)
+
+    override def hashCode(): PhaseId = id
   }
 
   type TermSymbol = Symbol { type ThisName = TermName }

Original file line number	Diff line number	Diff line change
`@@ -503,6 +503,8 @@ object Symbols {`
`503`	`503`	`def showKind(implicit ctx: Context): String = ctx.kindString(this)`
`504`	`504`	`def showName(implicit ctx: Context): String = ctx.nameString(this)`
`505`	`505`	`def showFullName(implicit ctx: Context): String = ctx.fullNameString(this)`
	`506`	`+`
	`507`	`+ override def hashCode(): PhaseId = id`
`506`	`508`	`}`
`507`	`509`
`508`	`510`	`type TermSymbol = Symbol { type ThisName = TermName }`