Fix "/ by zero" in FirResolveBench & switch progress OFF in smoke tests

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

@@ -77,6 +77,6 @@ class FirResolveTestTotalKotlin : AbstractFirResolveWithSessionTestCase() {
 
         println("Raw FIR up, files: ${firFiles.size}")
 
-        doFirResolveTestBench(firFiles, totalTransformer.transformers)
+        doFirResolveTestBench(firFiles, totalTransformer.transformers, withProgress = true)
     }
 }

compiler/tests-common/tests/org/jetbrains/kotlin/fir/FirResolveBench.kt

@@ -14,10 +14,16 @@ import org.jetbrains.kotlin.fir.visitors.FirTransformer
 import org.jetbrains.kotlin.fir.visitors.FirVisitorVoid
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.psiUtil.startOffset
+import kotlin.math.max
 import kotlin.reflect.KClass
 import kotlin.system.measureNanoTime
 
-fun doFirResolveTestBench(firFiles: List<FirFile>, transformers: List<FirTransformer<Nothing?>>, gc: Boolean = true) {
+fun doFirResolveTestBench(
+    firFiles: List<FirFile>,
+    transformers: List<FirTransformer<Nothing?>>,
+    gc: Boolean = true,
+    withProgress: Boolean = false
+) {
 
     if (gc) {
         System.gc()
@@ -34,7 +40,8 @@ fun doFirResolveTestBench(firFiles: List<FirFile>, transformers: List<FirTransfo
     try {
         for ((stage, transformer) in transformers.withIndex()) {
             println("Starting stage #$stage. $transformer")
-            for (firFile in firFiles.progress("   ~ ")) {
+            val firFileSequence = if (withProgress) firFiles.progress("   ~ ") else firFiles.asSequence()
+            for (firFile in firFileSequence) {
                 val time = measureNanoTime {
                     try {
                         transformer.transformFile(firFile, null)
@@ -120,7 +127,7 @@ fun doFirResolveTestBench(firFiles: List<FirFile>, transformers: List<FirTransfo
 }
 
 fun <T> Collection<T>.progress(label: String, step: Double = 0.1): Sequence<T> {
-    val intStep = (this.size * step).toInt()
+    val intStep = max(1, (this.size * step).toInt())
     var progress = 0
     return asSequence().onEach {
         if (progress % intStep == 0) {

idea/performanceTests/org/jetbrains/kotlin/idea/perf/FirTotalKotlinResolveInIdeTest.kt

@@ -101,6 +101,6 @@ class FirTotalKotlinResolveInIdeTest : ModuleTestCase() {
         }
 
         println("Raw fir up, files: ${firFiles.size}")
-        doFirResolveTestBench(firFiles, FirTotalResolveTransformer().transformers)
+        doFirResolveTestBench(firFiles, FirTotalResolveTransformer().transformers, withProgress = true)
     }
 }