[JS IR] Add a compiler option for generating name entries in sourcemaps

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/DefaultValues.kt

@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.config.LanguageVersion
 import org.jetbrains.kotlin.gradle.dsl.JsMainFunctionExecutionMode
 import org.jetbrains.kotlin.gradle.dsl.JsModuleKind
 import org.jetbrains.kotlin.gradle.dsl.JsSourceMapEmbedMode
+import org.jetbrains.kotlin.gradle.dsl.JsSourceMapNamesPolicy
 import org.jetbrains.kotlin.gradle.dsl.KotlinVersion as KotlinVersionDsl
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget as JvmTargetDsl
 import kotlin.reflect.KType
@@ -118,6 +119,23 @@ open class DefaultValues(
         """.trimIndent()
     )
 
+    object JsSourceMapNamesPolicies : DefaultValues(
+        "null",
+        typeOf<JsSourceMapNamesPolicy?>(),
+        typeOf<String?>(),
+        possibleValues = listOf(
+            K2JsArgumentConstants.SOURCE_MAP_NAMES_POLICY_NO,
+            K2JsArgumentConstants.SOURCE_MAP_NAMES_POLICY_SIMPLE_NAMES,
+            K2JsArgumentConstants.SOURCE_MAP_NAMES_POLICY_FQ_NAMES,
+        ).map { "\"$it\"" },
+        fromKotlinOptionConverterProp = """
+        this?.let { ${typeOf<JsSourceMapNamesPolicy>()}.fromPolicy(it) }
+        """.trimIndent(),
+        toKotlinOptionConverterProp = """
+        this?.policy
+        """.trimIndent()
+    )
+
     object JsMain : DefaultValues(
         "${typeOf<JsMainFunctionExecutionMode>()}.${JsMainFunctionExecutionMode.CALL.name}",
         typeOf<JsMainFunctionExecutionMode>(),

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.kt

@@ -96,6 +96,17 @@ class K2JSCompilerArguments : CommonCompilerArguments() {
     )
     var sourceMapEmbedSources: String? by NullableStringFreezableVar(null)
 
+    @GradleOption(
+        value = DefaultValues.JsSourceMapNamesPolicies::class,
+        gradleInputType = GradleInputTypes.INPUT
+    )
+    @Argument(
+        value = "-source-map-names-policy",
+        valueDescription = "{no|simple-names|fully-qualified-names}",
+        description = "How to map generated names to original names (IR backend only)"
+    )
+    var sourceMapNamesPolicy: String? by NullableStringFreezableVar(null)
+
     @GradleOption(
         value = DefaultValues.BooleanTrueDefault::class,
         gradleInputType = GradleInputTypes.INPUT

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JsArgumentConstants.java

@@ -30,6 +30,10 @@ public interface K2JsArgumentConstants {
     String SOURCE_MAP_SOURCE_CONTENT_NEVER = "never";
     String SOURCE_MAP_SOURCE_CONTENT_INLINING = "inlining";
 
+    String SOURCE_MAP_NAMES_POLICY_NO = "no";
+    String SOURCE_MAP_NAMES_POLICY_SIMPLE_NAMES = "simple-names";
+    String SOURCE_MAP_NAMES_POLICY_FQ_NAMES = "fully-qualified-names";
+
     String RUNTIME_DIAGNOSTIC_LOG = "log";
     String RUNTIME_DIAGNOSTIC_EXCEPTION = "exception";
 }