[FIR] Move reporting of errors in modularized tests in separate log file

compiler/fir/modularized-tests/tests/org/jetbrains/kotlin/fir/FirResolveModularizedTotalKotlinTest.kt

@@ -129,7 +129,7 @@ class FirResolveModularizedTotalKotlinTest : AbstractModularizedTest() {
 
     override fun afterPass(pass: Int) {
         val statistics = bench.getTotalStatistics()
-        statistics.report(System.out, "Pass $pass", errorTypeReports = false)
+        statistics.report(System.out, "Pass $pass")
 
         saveReport(pass, statistics)
         if (statistics.totalTime < (bestStatistics?.totalTime ?: Long.MAX_VALUE)) {
@@ -143,7 +143,8 @@ class FirResolveModularizedTotalKotlinTest : AbstractModularizedTest() {
 
     override fun afterAllPasses() {
         val bestStatistics = bestStatistics ?: return
-        printStatistics(bestStatistics, "Best pass: $bestPass", false)
+        printStatistics(bestStatistics, "Best pass: $bestPass")
+        printErrors(bestStatistics)
     }
 
     private val folderDateFormat = SimpleDateFormat("yyyy-MM-dd")
@@ -169,15 +170,17 @@ class FirResolveModularizedTotalKotlinTest : AbstractModularizedTest() {
         printStatistics(statistics, "PASS $pass")
     }
 
-    private fun printStatistics(statistics: FirResolveBench.TotalStatistics, header: String, errorTypeReports: Boolean = true) {
+    private fun printErrors(statistics: FirResolveBench.TotalStatistics) {
+        PrintStream(FileOutputStream(reportDir().resolve("errors-$reportDateStr.log"), true)).use(statistics::reportErrors)
+    }
+
+    private fun printStatistics(statistics: FirResolveBench.TotalStatistics, header: String) {
         PrintStream(
             FileOutputStream(
                 reportDir().resolve("report-$reportDateStr.log"),
                 true
             )
         ).use { stream ->
-            val sep = "=".repeat(10)
-            stream.println("$sep $header $sep")
             statistics.report(stream, header)
             stream.println()
             stream.println()

compiler/fir/resolve/tests/org/jetbrains/kotlin/fir/FirResolveBench.kt

@@ -319,19 +319,20 @@ fun <T> Collection<T>.progress(step: Double = 0.1, computeLabel: (T) -> String):
     }
 }
 
-fun FirResolveBench.TotalStatistics.report(stream: PrintStream, header: String, errorTypeReports: Boolean = true) {
-    with(stream) {
-        if (errorTypeReports)
-            errorTypesReports.values.sortedByDescending { it.count }.forEach {
-                print("${it.count}:")
-                println(it.report)
-            }
+fun FirResolveBench.TotalStatistics.reportErrors(stream: PrintStream) {
+    errorTypesReports.values.sortedByDescending { it.count }.forEach {
+        stream.print("${it.count}:")
+        stream.println(it.report)
+    }
+}
 
+fun FirResolveBench.TotalStatistics.report(stream: PrintStream, header: String) {
+    with(stream) {
         infix fun Int.percentOf(other: Int): String {
             return String.format("%.1f%%", this * 100.0 / other)
         }
         println()
-        println("---------- $header ----------")
+        println("========== $header ==========")
         println("Unresolved (untouched) implicit types: $unresolvedTypes (${unresolvedTypes percentOf totalTypes})")
         println("Resolved types: $resolvedTypes (${resolvedTypes percentOf totalTypes})")
         println("Correctly resolved types: $goodTypes (${goodTypes percentOf resolvedTypes} of resolved)")