Update test code

Author: noti0na1

compiler/test/dotty/tools/debug/DebugStepAssert.scala

@@ -49,17 +49,17 @@ private[debug] object DebugStepAssert:
       given location: CheckFileLocation = CheckFileLocation(checkFile, allLines.size - lines.size + 1)
       lines match
         case Nil => acc.reverse
-        case break(className , lineStr) :: tail =>
+        case break(className: String, lineStr: String) :: tail =>
           val breakpointLine = lineStr.toInt
           val step = DebugStepAssert(Break(className, breakpointLine), checkClassAndLine(className, breakpointLine))
           loop(tail, step :: acc)
-        case step(pattern) :: tail =>
+        case step(pattern: String) :: tail =>
           val step = DebugStepAssert(Step, checkLineOrMethod(pattern))
           loop(tail, step :: acc)
-        case next(pattern) :: tail =>
+        case next(pattern: String) :: tail =>
           val step = DebugStepAssert(Next, checkLineOrMethod(pattern))
           loop(tail, step :: acc)
-        case eval(expr) :: tail0 =>
+        case eval(expr: String) :: tail0 =>
           val (assertion, tail1) = parseEvalAssertion(tail0)
           val step = DebugStepAssert(Eval(expr), assertion)
           loop(tail1, step :: acc)
@@ -78,8 +78,8 @@ private[debug] object DebugStepAssert:
       lines match
         case Nil => throw new Exception(s"Missing result or error")
         case trailing() :: tail => parseEvalAssertion(tail)
-        case result(expected) :: tail => (checkResult(expected), tail)
-        case error(expected) :: tail => (checkError(Seq(expected)), tail)
+        case result(expected: String) :: tail => (checkResult(expected), tail)
+        case error(expected: String) :: tail => (checkError(Seq(expected)), tail)
         case multiLineError() :: tail0 =>
           val (expected, tail1) = tail0.span(_.startsWith("  "))
           (checkError(expected.map(_.stripPrefix("  "))), tail1)

compiler/test/dotty/tools/dotc/profile/TraceNameManglingTest.scala

@@ -27,7 +27,7 @@ class TraceNameManglingTest extends DottyTest {
   }
 
   @Test def escapeBackslashes(): Unit = {
-    val isWindows = sys.props("os.name").toLowerCase(Locale.ROOT).nn.contains("windows")
+    val isWindows = sys.props("os.name").nn.toLowerCase(Locale.ROOT).nn.contains("windows")
     // It is not possible to create a file with backslash in name on Windows
     val filename = if isWindows then "test.scala" else "\\.scala"
     checkTraceEvents(