Change policy with legacy compiler backend

[JS] Remove incremental js jps test

[JS] Remove test of maven js archetype

[JS] Fix another one test

[JS] Fix tests for jps

[JS] Try to fix maven test data

[JS] Fix test data

[JS] Fix test data for ant

[JS] Fix jsExtraHelp test

[JS] Fix test run from not-Gradle build tools

[JS] Set flag without compiler error

[JS] Disable warnings and errors in legacy compiler called from Gradle

[JS] Proofread messages

[JS] Not proofread messages

KT-42326

compiler/tests/org/jetbrains/kotlin/cli/AnalysisHandlerExtensionTest.kt

@@ -67,7 +67,7 @@ class AnalysisHandlerExtensionTest : TestCaseWithTmpdir() {
         val plugin = writePlugin(klass)
         val args = listOf("-Xplugin=$plugin", mainKt.absolutePath)
         val outputPath = if (compiler is K2JSCompiler)
-            listOf("-output", tmpdir.resolve("out.js").absolutePath)
+            listOf("-Xuse-deprecated-legacy-compiler", "-output", tmpdir.resolve("out.js").absolutePath)
         else
             listOf("-d", tmpdir.resolve("out").absolutePath)
         val (output, exitCode) = CompilerTestUtil.executeCompiler(compiler, args + outputPath + extras)

compiler/tests/org/jetbrains/kotlin/cli/LauncherScriptTest.kt

@@ -141,7 +141,7 @@ class LauncherScriptTest : TestCaseWithTmpdir() {
         runProcess(
             "kotlinc-js",
             "$testDataDirectory/emptyMain.kt",
-            "-Xlegacy-deprecated-no-warn", "-output", File(tmpdir, "out.js").path
+            "-Xlegacy-deprecated-no-warn", "-Xuse-deprecated-legacy-compiler", "-output", File(tmpdir, "out.js").path
         )
     }
 

compiler/tests/org/jetbrains/kotlin/jvm/compiler/CompileKotlinAgainstCustomBinariesTest.kt

@@ -122,7 +122,10 @@ class CompileKotlinAgainstCustomBinariesTest : AbstractKotlinCompilerIntegration
 
         val result =
             when (compiler) {
-                is K2JSCompiler -> compileJsLibrary(libraryName, additionalOptions = libraryOptions + "-Xlegacy-deprecated-no-warn")
+                is K2JSCompiler -> compileJsLibrary(
+                    libraryName,
+                    additionalOptions = libraryOptions + "-Xlegacy-deprecated-no-warn" + "-Xuse-deprecated-legacy-compiler"
+                )
                 is K2JVMCompiler -> compileLibrary(libraryName, additionalOptions = libraryOptions)
                 else -> throw UnsupportedOperationException(compiler.toString())
             }

compiler/tests/org/jetbrains/kotlin/multiplatform/AbstractMultiPlatformIntegrationTest.kt

@@ -65,7 +65,7 @@ abstract class AbstractMultiPlatformIntegrationTest : KtUsefulTestCase() {
             if (jsSrc != null) {
                 appendLine()
                 appendLine("-- JS --")
-                appendLine(K2JSCompiler().compile(jsSrc, commonSrc, "-output", jsDest!!))
+                appendLine(K2JSCompiler().compile(jsSrc, commonSrc, "-Xuse-deprecated-legacy-compiler", "-output", jsDest!!))
             }
 
             if (common2Src != null) {