Fixes to tests

1. I noted java_all was not running(it took 0.01s to complete); fixed by
   changing the test directory.

2. We suspected tasty_bootstrap was gettng the wrong classpath and
   had a lot of problems getting it to print the classpatg. Fixed
   by refactoring the options we pass to tasty_bootstrap (it has
   to be -verbose in addition to -classpath). For the moment,
   both a turned off but we have to just swap a false to a true
   to turn them on together.

Author: odersky

compiler/test/dotc/tests.scala

@@ -84,6 +84,7 @@ class tests extends CompilerTest {
   val runDir        = testsDir + "run/"
   val newDir        = testsDir + "new/"
   val replDir       = testsDir + "repl/"
+  val javaDir       = testsDir + "pos-java-interop/"
 
   val sourceDir = "./src/"
   val dottyDir  = sourceDir + "dotty/"
@@ -260,7 +261,6 @@ class tests extends CompilerTest {
       dotcDir + "config/PathResolver.scala"
     ), List(/* "-Ylog:frontend", */ "-Xprompt") ++ staleSymbolError ++ twice)
 
-  val javaDir = "./tests/pos-java-interop/"
   @Test def java_all = compileFiles(javaDir, twice)
   //@Test def dotc_compilercommand = compileFile(dotcDir + "config/", "CompilerCommand")
 
@@ -349,9 +349,10 @@ class tests extends CompilerTest {
   @Test def tasty_tests = compileDir(testsDir, "tasty", testPickling)
 
   @Test def tasty_bootstrap = {
-    val opt = List("-priorityclasspath", defaultOutputDir, "-Ylog-classpath")
+    val logging = if (false) List("-Ylog-classpath", "-verbose") else Nil
+    val opt = List("-priorityclasspath", defaultOutputDir) ++ logging
     // first compile dotty
-    compileDir(dottyDir, ".", List("-deep", "-Ycheck-reentrant", "-strict"))(allowDeepSubtypes)
+    compileDir(dottyDir, ".", List("-deep", "-Ycheck-reentrant", "-strict") ++ logging)(allowDeepSubtypes)
 
     compileDir(libDir, "dotty", "-deep" :: opt)
     compileDir(libDir, "scala", "-deep" :: opt)