Move scala/scala sources to ./scala/ from ../scala/

Needed for scala-infra.

Author: DarkDimius

test/test/ScannerTest.scala

@@ -58,6 +58,6 @@ class ScannerTest extends DottyTest {
 
   @Test
   def scanScala() = {
-    scanDir("../scala/src")
+    scanDir("./scala/src")
   }
 }

test/test/desugarPackage.scala

@@ -11,7 +11,7 @@ object desugarPackage extends DeSugarTest {
     val start = System.nanoTime()
     val startNodes = Trees.ntrees
     parseDir("./src")
-    parseDir("../scala/src")
+    parseDir("./scala/src")
     val ms1 = (System.nanoTime() - start)/1000000
     val nodes = Trees.ntrees
     val buf = parsedTrees map desugarTree

test/test/parsePackage.scala

@@ -66,7 +66,7 @@ object parsePackage extends ParserTest {
     nodes = 0
     val start = System.nanoTime()
     parseDir("./src")
-    parseDir("../scala/src")
+    parseDir("./scala/src")
     val ms1 = (System.nanoTime() - start)/1000000
     val buf = parsedTrees map transformer.transform
     val ms2 = (System.nanoTime() - start)/1000000