Keep Inlined nodes until BCode builder

Author: Tetchki

compiler/src/dotty/tools/backend/jvm/BCodeBodyBuilder.scala

@@ -479,6 +479,13 @@ trait BCodeBodyBuilder extends BCodeSkelBuilder {
         case t: TypeApply => // dotty specific
           generatedType = genTypeApply(t)
 
+        case inlined @ Inlined(call, bindings, expansion) => 
+          if(bindings.isEmpty)
+            genLoadTo(expansion, expectedType, dest)
+          else
+            genInlinedTo(inlined, expectedType, dest)
+          generatedDest = dest
+
         case _ => abort(s"Unexpected tree in genLoad: $tree/${tree.getClass} at: ${tree.span}")
       }
 
@@ -1090,6 +1097,17 @@ trait BCodeBodyBuilder extends BCodeSkelBuilder {
       varsInScope = savedScope
     }
 
+    def genInlinedTo(tree: Inlined, expectedType: BType, dest: LoadDestination): Unit = tree match {
+      case Inlined(call, bindings, expansion) =>
+
+      val savedScope = varsInScope
+      varsInScope = Nil
+      bindings foreach genStat
+      genLoadTo(expansion, expectedType, dest)
+      emitLocalVarScopes()
+      varsInScope = savedScope
+    }
+
     /** Add entries to the `LocalVariableTable` JVM attribute for all the vars in
      *  `varsInScope`, ending at the current program point.
      */

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

@@ -897,7 +897,7 @@ object Erasure {
 
     override def typedInlined(tree: untpd.Inlined, pt: Type)(using Context): Tree =
       super.typedInlined(tree, pt) match {
-        case tree: Inlined => Inlines.dropInlined(tree)
+        case tree: Inlined => tree //Inlines.dropInlined(tree)
       }
 
     override def typedValDef(vdef: untpd.ValDef, sym: Symbol)(using Context): Tree =