[FIR JS] Don't create secondary constructor calls for externals

The change in PSI consistency test is needed, because
we may sometimes observe empty
`KtConstructorDelegationCall`s, and we don't want
to build delegation calls for constructors of `external`
classes with such calls.

^KT-64548 Fixed

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/converter/LightTreeRawFirDeclarationBuilder.kt

@@ -1161,7 +1161,7 @@ class LightTreeRawFirDeclarationBuilder(
     private fun convertConstructorDelegationCall(
         constructorDelegationCall: LighterASTNode,
         classWrapper: ClassWrapper
-    ): FirDelegatedConstructorCall {
+    ): FirDelegatedConstructorCall? {
         var thisKeywordPresent = false
         val firValueArguments = mutableListOf<FirExpression>()
         constructorDelegationCall.forEachChildren {
@@ -1172,6 +1172,9 @@ class LightTreeRawFirDeclarationBuilder(
         }
 
         val isImplicit = constructorDelegationCall.textLength == 0
+        if (isImplicit && classWrapper.modifiers.hasExternal()) {
+            return null
+        }
         val isThis = thisKeywordPresent //|| (isImplicit && classWrapper.hasPrimaryConstructor)
         val delegatedType =
             when {

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/fir/ClassWrapper.kt

@@ -16,7 +16,7 @@ import org.jetbrains.kotlin.fir.lightTree.fir.modifier.Modifier
 import org.jetbrains.kotlin.fir.types.FirTypeRef
 
 class ClassWrapper(
-    private val modifiers: Modifier,
+    val modifiers: Modifier,
     private val classKind: ClassKind,
     val classBuilder: FirClassBuilder,
     val hasSecondaryConstructor: Boolean,