Label test with nested cycles and simple patterns.

Author: DarkDimius

test/dotc/tests.scala

@@ -127,6 +127,7 @@ class tests extends CompilerTest {
   @Test def tools_io = compileDir(dotcDir + "tools/io", twice)
 
   @Test def helloWorld = compileFile(posDir, "HelloWorld", doEmitBytecode)
+  @Test def labels = compileFile(posDir, "Labels", doEmitBytecode)
   //@Test def tools = compileDir(dotcDir + "tools", "-deep" :: Nil)(allowDeepSubtypes)
 
   @Test def testNonCyclic = compileArgs(Array(

tests/pos/Labels.scala

@@ -0,0 +1,21 @@
+object Labels {
+  def main(args: Array[String]): Unit = {
+  var i = 10
+  while(i>0) { 
+   var j = 0
+   while(j<i) {
+   println(j+" " + i)
+   j = j +1
+   } 
+   i = i - 1}
+   pattern(1)
+   pattern(2)
+   pattern(3) 
+ }
+ 
+ def pattern(a: Int) = a match {
+  case 1 if (a>0) => println("one")
+  case t@2 => println("two" + t)
+  case _ => println("default")
+ }
+}