[Native][Tests] Improve reporting for external codegen tests

Add abort() method that adds tests that failed to compile
to statistics with Error status.

kotlin-native/build-tools/src/main/groovy/org/jetbrains/kotlin/KonanTest.groovy

@@ -553,8 +553,8 @@ fun runTest() {
                 project.logger.quiet("ERROR: Compilation failed for test suite: $name with exception", ex)
                 project.logger.quiet("The following files were unable to compile:")
                 ktFiles.each { project.logger.quiet(it.name) }
-                suite.abort(ex, ktFiles.size())
+                suite.abort("Compilation failed for test suite: $name", ex, ktFiles.collect { it.name })
-                throw new RuntimeException("Compilation failed", ex)
+                return
             }
 
             // Run the tests.

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/KonanTestSuiteReport.kt

@@ -83,7 +83,16 @@ class KonanTestSuiteReportEnvironment(val name: String, val project: Project, va
         tests += KonanTestCaseReport(name, TestStatus.SKIPPED)
     }
 
-    fun abort(throwable: Throwable, count:Int) {
+    fun abort(comment: String, throwable: Throwable, testNames: List<String>) {
+        testNames.forEach {
+            tc?.startTest(it)
+            tc?.errorTest(it, java.lang.Exception(throwable))
+            tests += KonanTestCaseReport(it, TestStatus.ERROR, "$comment\n${throwable.toString()}")
+        }
+        abort(throwable, testNames.size)
+    }
+
+    fun abort(throwable: Throwable, count: Int) {
         statistics.error(count)
         project.logger.quiet("suite `$name` aborted with exception", throwable)
     }