neg playground added

Author: anatoliykmetyuk

compiler/test/dotty/tools/dotc/CompilationTests.scala

@@ -42,6 +42,11 @@ class CompilationTests extends ParallelTesting {
     compileFilesInDir("tests/playground/pos", defaultOptions).checkCompile()
   }
 
+  @Test def exampleNeg: Unit = {
+    implicit val testGroup: TestGroup = TestGroup("examplePos")
+    compileFilesInDir("tests/playground/neg", defaultOptions).checkExpectedErrors()
+  }
+
   @Test def exampleRun: Unit = {
     implicit val testGroup: TestGroup = TestGroup("exampleRun")
     compileFilesInDir("tests/playground/run", defaultOptions).checkRuns()

tests/playground/neg/example.scala

@@ -0,0 +1 @@
+stuff // error

tests/playground/neg/sample/A_1.scala

@@ -0,0 +1,3 @@
+object A {
+  val name = "World"afwsf 
+}// error

tests/playground/neg/sample/B_2.scala

@@ -0,0 +1,3 @@
+object B extends App {
+  println(s"Hello, ${A.name}") // error
+}

tests/playground/pos/example.scala

@@ -0,0 +1 @@
+stuff