Small internal code improvements

No need to call `toSet` method on a set

Author: gslowikowski

scalac-scoverage-plugin/src/test/scala/scoverage/IOUtilsTest.scala

@@ -16,7 +16,7 @@ class IOUtilsTest extends FreeSpec with MockitoSugar with OneInstancePerTest wit
       writer.write("1\n5\n9\n\n10\n")
       writer.close()
       val invoked = IOUtils.invoked(Seq(file))
-      assert(invoked.toSet === Set(1, 5, 9, 10))
+      assert(invoked === Set(1, 5, 9, 10))
 
       file.delete()
     }
@@ -37,7 +37,7 @@ class IOUtilsTest extends FreeSpec with MockitoSugar with OneInstancePerTest wit
 
       val files = IOUtils.findMeasurementFiles(file1.getParent)
       val invoked = IOUtils.invoked(files.toIndexedSeq)
-      assert(invoked.toSet === Set(1, 2, 5, 7, 9, 10, 14))
+      assert(invoked === Set(1, 2, 5, 7, 9, 10, 14))
 
       file1.delete()
       file2.delete()
@@ -66,7 +66,7 @@ class IOUtilsTest extends FreeSpec with MockitoSugar with OneInstancePerTest wit
 
       val files = IOUtils.reportFileSearch(base, IOUtils.isReportFile)
       val invoked = IOUtils.invoked(files)
-      assert(invoked.toSet === Set(1, 2, 3, 4, 5, 6, 7, 8, 11, 20, 30, 44))
+      assert(invoked === Set(1, 2, 3, 4, 5, 6, 7, 8, 11, 20, 30, 44))
 
       file1.delete()
       file2.delete()

scalac-scoverage-plugin/src/test/scala/scoverage/ScoverageCompiler.scala

@@ -102,7 +102,6 @@ class ScoverageCompiler(settings: scala.tools.nsc.Settings, reporter: scala.tool
 
   def assertNoCoverage() = assert(!testStore.sources.mkString(" ").contains(s"scoverage.Invoker.invoked"))
 
-
   def assertNMeasuredStatements(n: Int): Unit = {
     for (k <- 1 to n) {
       assert(testStore.sources.mkString(" ").contains(s"scoverage.Invoker.invoked($k,"),

scalac-scoverage-runtime/jvm/src/test/scala/scoverage/InvokerConcurrencyTest.scala

@@ -38,7 +38,7 @@ class InvokerConcurrencyTest extends FunSuite with BeforeAndAfter {
 
     // Now verify that the measurement file is not corrupted by loading it
     val measurementFiles = Invoker.findMeasurementFiles(measurementDir)
-    val idsFromFile = Invoker.invoked(measurementFiles.toIndexedSeq).toSet
+    val idsFromFile = Invoker.invoked(measurementFiles.toIndexedSeq)
 
     idsFromFile === testIds
   }

scalac-scoverage-runtime/shared/src/test/scala/scoverage/InvokerMultiModuleTest.scala

@@ -27,12 +27,12 @@ class InvokerMultiModuleTest extends FunSuite with BeforeAndAfter {
 
     // Verify measurements went to correct directory
     val measurementFiles0 = Invoker.findMeasurementFiles(measurementDir(0))
-    val idsFromFile0 = Invoker.invoked(measurementFiles0.toIndexedSeq).toSet
+    val idsFromFile0 = Invoker.invoked(measurementFiles0.toIndexedSeq)
 
     idsFromFile0 === testIds.filter { i: Int => i % 2 == 0 }
 
     val measurementFiles1 = Invoker.findMeasurementFiles(measurementDir(0))
-    val idsFromFile1 = Invoker.invoked(measurementFiles1.toIndexedSeq).toSet
+    val idsFromFile1 = Invoker.invoked(measurementFiles1.toIndexedSeq)
     idsFromFile1 === testIds.filter { i: Int => i % 2 == 1 }
   }