diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/FirModuleResolveStateImpl.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/FirModuleResolveStateImpl.kt
index abd336d1a2d..66f08e30e2b 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/FirModuleResolveStateImpl.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/FirModuleResolveStateImpl.kt
@@ -68,7 +68,7 @@ internal class FirModuleResolveStateImpl(
         )
 
     override fun getOrBuildFirFile(ktFile: KtFile): FirFile =
-        firFileBuilder.buildRawFirFileWithCaching(ktFile, rootModuleSession.cache, allowLazyBodies = false)
+        firFileBuilder.buildRawFirFileWithCaching(ktFile, rootModuleSession.cache, preferLazyBodies = false)
 
     override fun tryGetCachedFirFile(declaration: FirDeclaration, cache: ModuleFileCache): FirFile? =
         cache.getContainerFirFile(declaration)
diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/api/LowLevelFirApiFacadeForResolveOnAir.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/api/LowLevelFirApiFacadeForResolveOnAir.kt
index c9a0357e4dd..683b5f017d5 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/api/LowLevelFirApiFacadeForResolveOnAir.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/api/LowLevelFirApiFacadeForResolveOnAir.kt
@@ -30,7 +30,6 @@ import org.jetbrains.kotlin.idea.fir.low.level.api.element.builder.FirTowerDataC
 import org.jetbrains.kotlin.idea.fir.low.level.api.file.builder.runCustomResolveUnderLock
 import org.jetbrains.kotlin.idea.fir.low.level.api.file.structure.FirElementsRecorder
 import org.jetbrains.kotlin.idea.fir.low.level.api.file.structure.KtToFirMapping
-import org.jetbrains.kotlin.idea.fir.low.level.api.lazy.resolve.FirLazyDeclarationResolver
 import org.jetbrains.kotlin.idea.fir.low.level.api.lazy.resolve.RawFirNonLocalDeclarationBuilder
 import org.jetbrains.kotlin.idea.fir.low.level.api.lazy.resolve.RawFirReplacement
 import org.jetbrains.kotlin.idea.fir.low.level.api.lazy.resolve.buildFileFirAnnotation
@@ -132,7 +131,7 @@ object LowLevelFirApiFacadeForResolveOnAir {
         val firFile = session.firFileBuilder.buildRawFirFileWithCaching(
             ktFile = file,
             cache = session.cache,
-            allowLazyBodies = true
+            preferLazyBodies = true
         )
 
         state.firLazyDeclarationResolver.lazyResolveFileDeclaration(
diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/element/builder/FirElementBuilder.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/element/builder/FirElementBuilder.kt
index 423490d6eb0..bd50be97854 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/element/builder/FirElementBuilder.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/element/builder/FirElementBuilder.kt
@@ -66,7 +66,7 @@ internal class FirElementBuilder {
         moduleFileCache: ModuleFileCache,
         firLazyDeclarationResolver: FirLazyDeclarationResolver
     ): FirFile {
-        val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, allowLazyBodies = false)
+        val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, preferLazyBodies = false)
         firLazyDeclarationResolver.lazyResolveFileDeclaration(
             firFile = firFile,
             moduleFileCache = moduleFileCache,
diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/builder/FirFileBuilder.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/builder/FirFileBuilder.kt
index f2d7ba42920..b02189fc574 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/builder/FirFileBuilder.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/builder/FirFileBuilder.kt
@@ -29,9 +29,9 @@ internal class FirFileBuilder(
     fun buildRawFirFileWithCaching(
         ktFile: KtFile,
         cache: ModuleFileCache,
-        allowLazyBodies: Boolean
+        preferLazyBodies: Boolean
     ): FirFile = cache.fileCached(ktFile) {
-        RawFirBuilder(cache.session, scopeProvider, RawFirBuilderMode.lazyBodies(allowLazyBodies)).buildFirFile(ktFile)
+        RawFirBuilder(cache.session, scopeProvider, RawFirBuilderMode.lazyBodies(preferLazyBodies)).buildFirFile(ktFile)
     }
 }
 
diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/structure/FileStructure.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/structure/FileStructure.kt
index 514a3728d2d..6f46e476c4c 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/structure/FileStructure.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/structure/FileStructure.kt
@@ -35,7 +35,7 @@ internal class FileStructure private constructor(
             firFileBuilder: FirFileBuilder,
             moduleFileCache: ModuleFileCache,
         ): FileStructure {
-            val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, allowLazyBodies = false)
+            val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, preferLazyBodies = false)
             return FileStructure(ktFile, firFile, firLazyDeclarationResolver, firFileBuilder, moduleFileCache)
         }
     }
@@ -129,7 +129,7 @@ internal class FileStructure private constructor(
 
     private fun createStructureElement(container: KtAnnotated): FileStructureElement = when (container) {
         is KtFile -> {
-            val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, allowLazyBodies = true)
+            val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, preferLazyBodies = true)
             firLazyDeclarationResolver.resolveFileAnnotations(
                 firFile = firFile,
                 annotations = firFile.annotations,
diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/providers/FirProviderHelper.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/providers/FirProviderHelper.kt
index 0bd4dd4fad4..7fe1b914fa1 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/providers/FirProviderHelper.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/providers/FirProviderHelper.kt
@@ -39,7 +39,7 @@ internal class FirProviderHelper(
                     null -> indexHelper.typeAliasFromIndexByClassId(classId)
                     else -> if (klass.getClassId() == null) null else klass
                 } ?: return@computeIfAbsent Optional.empty()
-                val firFile = firFileBuilder.buildRawFirFileWithCaching(ktClass.containingKtFile, cache, allowLazyBodies = true)
+                val firFile = firFileBuilder.buildRawFirFileWithCaching(ktClass.containingKtFile, cache, preferLazyBodies = true)
                 val classifier = FirElementFinder.findElementIn<FirClassLikeDeclaration<*>>(firFile) { classifier ->
                     classifier.symbol.classId == classId
                 }
@@ -61,7 +61,7 @@ internal class FirProviderHelper(
                 @OptIn(ExperimentalStdlibApi::class)
                 buildList {
                     files.forEach { ktFile ->
-                        val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, cache, allowLazyBodies = true)
+                        val firFile = firFileBuilder.buildRawFirFileWithCaching(ktFile, cache, preferLazyBodies = true)
                         firFile.collectCallableDeclarationsTo(this, name)
                     }
                 }
diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/util/declarationUtils.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/util/declarationUtils.kt
index 2ab7c6a10ad..dbb091d1f97 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/util/declarationUtils.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/util/declarationUtils.kt
@@ -42,7 +42,7 @@ internal fun KtDeclaration.findFirDeclarationForAnyFirSourceDeclaration(
 ): FirDeclaration {
     val nonLocalDeclaration = getNonLocalContainingOrThisDeclaration()
         ?.findSourceNonLocalFirDeclaration(firFileBuilder, firSymbolProvider, moduleFileCache)
-        ?: firFileBuilder.buildRawFirFileWithCaching(containingKtFile, moduleFileCache, allowLazyBodies = true)
+        ?: firFileBuilder.buildRawFirFileWithCaching(containingKtFile, moduleFileCache, preferLazyBodies = true)
     val originalDeclaration = originalDeclaration
     val fir = FirElementFinder.findElementIn<FirDeclaration>(nonLocalDeclaration) { firDeclaration ->
         firDeclaration.psi == this || firDeclaration.psi == originalDeclaration
@@ -66,7 +66,7 @@ private fun KtDeclaration.findSourceOfNonLocalFirDeclarationByTraversingWholeTre
     moduleFileCache: ModuleFileCache,
     containerFirFile: FirFile?,
 ): FirDeclaration? {
-    val firFile = containerFirFile ?: firFileBuilder.buildRawFirFileWithCaching(containingKtFile, moduleFileCache, allowLazyBodies = true)
+    val firFile = containerFirFile ?: firFileBuilder.buildRawFirFileWithCaching(containingKtFile, moduleFileCache, preferLazyBodies = true)
     val originalDeclaration = originalDeclaration
     return FirElementFinder.findElementIn(firFile, goInside = { it is FirRegularClass }) { firDeclaration ->
         firDeclaration.psi == this || firDeclaration.psi == originalDeclaration
@@ -88,7 +88,7 @@ private fun KtDeclaration.findSourceNonLocalFirDeclarationByProvider(
                 containerClassFir?.declarations
             } else {
                 val ktFile = containingKtFile
-                val firFile = containerFirFile ?: firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, allowLazyBodies = true)
+                val firFile = containerFirFile ?: firFileBuilder.buildRawFirFileWithCaching(ktFile, moduleFileCache, preferLazyBodies = true)
                 firFile.declarations
             }
             val original = originalDeclaration