Reorder pattern match based on frequency

Author: nicolasstucki

compiler/src/dotty/tools/dotc/transform/TreeTransform.scala

@@ -909,15 +909,18 @@ object TreeTransforms {
       tree match {
         case tree: Ident => goIdent(tree, info.nx.nxTransIdent(cur))
         case tree: Select => goSelect(tree, info.nx.nxTransSelect(cur))
-        case tree: Bind => goBind(tree, cur)
-        case tree: ValDef if !tree.isEmpty => goValDef(tree, info.nx.nxTransValDef(cur))
         case tree: DefDef => goDefDef(tree, info.nx.nxTransDefDef(cur))
         case tree: TypeDef => goTypeDef(tree, info.nx.nxTransTypeDef(cur))
+        case tree: Bind => goBind(tree, cur)
+        case tree: ValDef if !tree.isEmpty => goValDef(tree, info.nx.nxTransValDef(cur))
         case _ => tree
       }
 
     final private[TreeTransforms] def goUnnamed(tree: Tree, cur: Int)(implicit ctx: Context, info: TransformerInfo): Tree =
       tree match {
+        case tree: Thicket => tree
+        case tree: Block => goBlock(tree, info.nx.nxTransBlock(cur))
+        case tree: Match => goMatch(tree, info.nx.nxTransMatch(cur))
         case tree: This => goThis(tree, info.nx.nxTransThis(cur))
         case tree: Super => goSuper(tree, info.nx.nxTransSuper(cur))
         case tree: Apply => goApply(tree, info.nx.nxTransApply(cur))
@@ -926,10 +929,8 @@ object TreeTransforms {
         case tree: New => goNew(tree, info.nx.nxTransNew(cur))
         case tree: Typed => goTyped(tree, info.nx.nxTransTyped(cur))
         case tree: Assign => goAssign(tree, info.nx.nxTransAssign(cur))
-        case tree: Block => goBlock(tree, info.nx.nxTransBlock(cur))
         case tree: If => goIf(tree, info.nx.nxTransIf(cur))
         case tree: Closure => goClosure(tree, info.nx.nxTransClosure(cur))
-        case tree: Match => goMatch(tree, info.nx.nxTransMatch(cur))
         case tree: CaseDef => goCaseDef(tree, info.nx.nxTransCaseDef(cur))
         case tree: Return => goReturn(tree, info.nx.nxTransReturn(cur))
         case tree: Try => goTry(tree, info.nx.nxTransTry(cur))
@@ -940,7 +941,6 @@ object TreeTransforms {
         case tree: UnApply => goUnApply(tree, info.nx.nxTransUnApply(cur))
         case tree: Template => goTemplate(tree, info.nx.nxTransTemplate(cur))
         case tree: PackageDef => goPackageDef(tree, info.nx.nxTransPackageDef(cur))
-        case Thicket(trees) => tree
         case tree => goOther(tree, info.nx.nxTransOther(cur))
       }