Fix "Should be replaced with Kotlin function" warnings

libraries/kotlin.test/jvm/src/main/kotlin/AssertionsImpl.kt

@@ -51,7 +51,7 @@ actual fun <T : Throwable> assertFailsWith(exceptionClass: KClass<T>, message: S
  */
 @InlineOnly
 actual inline fun todo(@Suppress("UNUSED_PARAMETER") block: () -> Unit) {
-    System.out.println("TODO at " + currentStackTrace()[0])
+    println("TODO at " + currentStackTrace()[0])
 }
 
 /**

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt

@@ -306,7 +306,7 @@ abstract class BaseGradleIT {
         } catch (t: Throwable) {
             // to prevent duplication of output
             if (!options.forceOutputToStdout) {
-                System.out.println(result.output)
+                println(result.output)
             }
             throw t
         }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/util/gradleRunningUtils.kt

@@ -37,7 +37,7 @@ fun runProcess(
     val sb = StringBuilder()
     process.inputStream!!.bufferedReader().forEachLine {
         if (options?.forceOutputToStdout ?: false) {
-            System.out.println(it)
+            println(it)
         }
         sb.appendln(it)
     }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/multiprojectWithDependency/projB/src/main/kotlin/helloWorld.kt

@@ -1,7 +1,7 @@
 package projB
 
 fun main(vararg args: String) {
-    System.out.println(projA.getInfo())
+    println(projA.getInfo())
 }
 
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/GradleKotlinCompilerWork.kt

@@ -76,7 +76,7 @@ internal class GradleKotlinCompilerWork @Inject constructor(
     companion object {
         init {
             if (System.getProperty("org.jetbrains.kotlin.compilerRunner.GradleKotlinCompilerWork.trace.loading") == "true") {
-                System.out.println("Loaded GradleKotlinCompilerWork")
+                println("Loaded GradleKotlinCompilerWork")
             }
         }
     }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/reportUtils.kt

@@ -93,7 +93,7 @@ internal fun runToolInSeparateProcess(
         }
     } else {
         process.inputStream!!.bufferedReader().forEachLine {
-            System.out.println(it)
+            println(it)
         }
     }
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinGradleBuildServices.kt

@@ -31,6 +31,7 @@ import org.jetbrains.kotlin.gradle.report.configureBuildReporter
 import org.jetbrains.kotlin.gradle.utils.relativeToRoot
 import org.jetbrains.kotlin.utils.addToStdlib.sumByLong
 import java.lang.management.ManagementFactory
+import kotlin.math.max
 
 internal class KotlinGradleBuildServices private constructor(
     private val gradle: Gradle
@@ -132,7 +133,7 @@ internal class KotlinGradleBuildServices private constructor(
     }
 
     private fun getGcCount(): Long =
-        ManagementFactory.getGarbageCollectorMXBeans().sumByLong { Math.max(0, it.collectionCount) }
+        ManagementFactory.getGarbageCollectorMXBeans().sumByLong { max(0, it.collectionCount) }
 
     private var loadedInProjectPath: String? = null
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/internal/RewriteSourceMapFilterReader.kt

@@ -6,6 +6,7 @@ import com.google.gson.stream.JsonWriter
 import com.google.gson.stream.MalformedJsonException
 import org.slf4j.LoggerFactory
 import java.io.*
+import kotlin.math.min
 
 open class RewriteSourceMapFilterReader(
     val input: Reader
@@ -175,7 +176,7 @@ open class RewriteSourceMapFilterReader(
                 }
             }
 
-            val toRead = Math.min(todo, bufferAvailable)
+            val toRead = min(todo, bufferAvailable)
             buffer.getChars(bufferReadPos, bufferReadPos + toRead, dest, destOffset)
             bufferReadPos += toRead
             destOffset += toRead
@@ -201,7 +202,7 @@ open class RewriteSourceMapFilterReader(
                 }
             }
 
-            val toRead = Math.min(todo, bufferAvailable)
+            val toRead = min(todo, bufferAvailable)
             bufferReadPos += toRead
             todo -= toRead
         }

libraries/tools/kotlinp/src/org/jetbrains/kotlin/kotlinp/Main.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.kotlinp
 
 import java.io.File
 import java.io.IOException
+import kotlin.system.exitProcess
 
 object Main {
     private fun run(args: Array<String>) {
@@ -60,7 +61,7 @@ object Main {
             run(args)
         } catch (e: KotlinpException) {
             System.err.println("error: " + e.message)
-            System.exit(1)
+            exitProcess(1)
         }
     }
 
@@ -75,7 +76,7 @@ where possible options include:
   -help (-h)                 Print a synopsis of options
 """
         )
-        System.exit(0)
+        exitProcess(0)
     }
 
     private fun printVersionAndExit() {
@@ -83,6 +84,6 @@ where possible options include:
         val version = "@snapshot@"
 
         println("Kotlin version " + version + " (JRE " + System.getProperty("java.runtime.version") + ")")
-        System.exit(0)
+        exitProcess(0)
     }
 }