[JS BE] Do not produce source mapping for fake KtElement

Fix [KT-26701], [KT-12935]

compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/util/callUtil.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.resolve.calls.callUtil
 
+import com.intellij.psi.PsiElement
 import com.intellij.psi.util.PsiTreeUtil
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.incremental.KotlinLookupLocation
@@ -246,6 +247,9 @@ val KtElement.isFakeElement: Boolean
         return file is KtFile && file.doNotAnalyze != null
     }
 
+val PsiElement.isFakePsiElement: Boolean
+    get() = this is KtElement && isFakeElement
+
 fun Call.isSafeCall(): Boolean {
     if (this is CallTransformer.CallForImplicitInvoke) {
         //implicit safe 'invoke'

js/js.serializer/src/org/jetbrains/kotlin/serialization/js/ast/JsAstSerializer.kt

@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.js.backend.ast.JsImportedModule
 import org.jetbrains.kotlin.js.backend.ast.metadata.*
 import org.jetbrains.kotlin.js.backend.ast.metadata.LocalAlias
 import org.jetbrains.kotlin.js.backend.ast.metadata.SpecialFunction
+import org.jetbrains.kotlin.resolve.calls.callUtil.isFakePsiElement
 import org.jetbrains.kotlin.serialization.js.ast.JsAstProtoBuf.*
 import org.jetbrains.kotlin.serialization.js.ast.JsAstProtoBuf.BinaryOperation.Type.*
 import org.jetbrains.kotlin.serialization.js.ast.JsAstProtoBuf.UnaryOperation.Type.*
@@ -666,7 +667,7 @@ class JsAstSerializer(private val jsAstValidator: ((JsProgramFragment, Set<JsNam
         val source = node.source
         return when (source) {
             is JsLocationWithSource -> source.asSimpleLocation()
-            is PsiElement -> extractLocation(source)
+            is PsiElement -> if (!source.isFakePsiElement) extractLocation(source) else null
             else -> null
         }
     }

js/js.tests/test/org/jetbrains/kotlin/js/test/utils/LineCollector.kt

@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.js.test.utils
 
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.js.backend.ast.*
+import org.jetbrains.kotlin.resolve.calls.callUtil.isFakePsiElement
 
 class LineCollector : RecursiveJsVisitor() {
     val lines = mutableListOf<Int?>()
@@ -34,10 +35,12 @@ class LineCollector : RecursiveJsVisitor() {
         val source = node.source
         val line = when (source) {
             is PsiElement -> {
-                val file = source.containingFile
+                if (!source.isFakePsiElement) {
-                val offset = source.node.startOffset
+                    val file = source.containingFile
-                val document = file.viewProvider.document!!
+                    val offset = source.node.startOffset
-                document.getLineNumber(offset)
+                    val document = file.viewProvider.document!!
+                    document.getLineNumber(offset)
+                } else null
             }
             is JsLocationWithSource -> {
                 source.startLine

js/js.translator/src/org/jetbrains/kotlin/js/facade/SourceMapBuilderConsumer.java

@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.js.backend.ast.JsLocationWithSource;
 import org.jetbrains.kotlin.js.sourceMap.SourceFilePathResolver;
 import org.jetbrains.kotlin.js.sourceMap.SourceMapMappingConsumer;
 import org.jetbrains.kotlin.js.translate.utils.PsiUtils;
+import org.jetbrains.kotlin.resolve.calls.callUtil.CallUtilKt;
 
 import java.io.*;
 import java.nio.charset.Charset;
@@ -87,6 +88,7 @@ public class SourceMapBuilderConsumer implements SourceLocationConsumer {
         }
         if (sourceInfo instanceof PsiElement) {
             PsiElement element = (PsiElement) sourceInfo;
+            if (CallUtilKt.isFakePsiElement(element)) return;
             try {
                 JsLocation location = PsiUtils.extractLocationFromPsi(element, pathResolver);
                 PsiFile psiFile = element.getContainingFile();

js/js.translator/testData/lineNumbers/coroutine.kt

@@ -14,4 +14,4 @@ suspend fun bar(): Unit {
     println(a + b)
 }
 
-// LINES: 38 4 4 4 5 5 44 44 5 89 44 5 5 6 4 4 4 15 9 9 9 * 15 10 10 11 11 11 2 11 11 * 11 12 12 13 13 13 2 13 13 13 13 14 14 * 15 9 9 9 9
+// LINES: 38 4 4 4 5 5 44 44 5 89 44 5 5 6 4 4 4 15 9 9 9 * 15 10 10 11 11 11 11 11 * 11 12 12 13 13 13 13 13 13 13 14 14 * 15 9 9 9 9

js/js.translator/testData/lineNumbers/coroutineNullAssertion.kt

@@ -8,4 +8,4 @@ suspend fun foo() {
 suspend fun delay() {
 }
 
-// LINES: 6 1 1 * 6 2 2 2 2 2 * 3 3 4 4 4 2 4 4 5 5 * 6 1 1 1 1 9
+// LINES: 6 1 1 * 6 2 2 2 2 2 * 3 3 4 4 4 4 4 5 5 * 6 1 1 1 1 9

js/js.translator/testData/lineNumbers/delegatedProperty.kt

@@ -15,4 +15,4 @@ class B {
     }
 }
 
-// LINES: 3 4 5 * 4 4 4 2 * 8 11 10 10 15 14 14
+// LINES: 3 4 5 * 4 4 4 * 8 11 10 10 15 14 14