Remove optimizations based on implementation details

Author: nicolasstucki

compiler/src/dotty/tools/dotc/ast/Positioned.scala

@@ -29,9 +29,10 @@ abstract class Positioned(implicit @constructorOnly src: SourceFile) extends Pro
   def uniqueId_=(id: Int): Unit = {
     def printTrace() = {
       println(s"Debug tree (id=${Positioned.debugId}) creation \n$this\n")
-      Reporter.displayPrompt(Console.in, new PrintWriter(Console.err, true))
+      new Exception().printStackTrace
+//      Reporter.displayPrompt(Console.in, new PrintWriter(Console.err, true))
     }
-    if (Positioned.debugId == id) printTrace()
+    if (13 == id) printTrace()
     myUniqueId = id
   }
 

library/src/scala/quoted/Liftable.scala

@@ -233,20 +233,14 @@ object Liftable {
   }
 
   given as Liftable[BigInt] = new Liftable[BigInt] {
-    def toExpr(x: BigInt): given QuoteContext => Expr[BigInt] = {
-      lazy val xInt: Int = x.intValue()
-      if (x.isValidInt && -1024 <= xInt && xInt < 1024) '{ BigInt(${xInt.toExpr}) } // Cached BigInt
-      else '{ BigInt(${x.toString(Character.MAX_RADIX).toExpr}, ${Character.MAX_RADIX.toExpr}) } // Compact string BigInt
-    }
+    def toExpr(x: BigInt): given QuoteContext => Expr[BigInt] =
+      '{ BigInt(${x.toString(Character.MAX_RADIX).toExpr}, ${Character.MAX_RADIX.toExpr}) }
   }
 
   /** Lift a BigDecimal using the default MathContext */
   given as Liftable[BigDecimal] = new Liftable[BigDecimal] {
-    def toExpr(x: BigDecimal): given QuoteContext => Expr[BigDecimal] = {
-      lazy val xInt: Int = x.intValue()
-      if (x.isValidInt && -512 <= xInt && xInt < 512) '{ BigDecimal(${xInt.toExpr}) } // Cached BigDecimal
-      else '{ BigDecimal(${x.toString.toExpr}) }
-    }
+    def toExpr(x: BigDecimal): given QuoteContext => Expr[BigDecimal] =
+      '{ BigDecimal(${x.toString.toExpr}) }
   }
 
 }