[FE] Move @PrivateForInline optIn into :core:compiler.common

This is needed to be able to use it in backend modules too

analysis/analysis-test-framework/tests/org/jetbrains/kotlin/analysis/test/framework/services/ExpressionMarkersSourceFilePreprocessor.kt

@@ -10,7 +10,7 @@ import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiWhiteSpace
 import org.jetbrains.kotlin.analysis.test.framework.project.structure.ktModuleProvider
 import org.jetbrains.kotlin.analysis.utils.printer.parentOfType
-import org.jetbrains.kotlin.fir.PrivateForInline
+import org.jetbrains.kotlin.util.PrivateForInline
 import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.psiUtil.collectDescendantsOfType
@@ -195,4 +195,4 @@ class CaretProvider {
 val TestServices.expressionMarkerProvider: ExpressionMarkerProvider by TestServices.testServiceAccessor()
 
 fun String.indexOfOrNull(substring: String) =
-    indexOf(substring).takeIf { it >= 0 }
+    indexOf(substring).takeIf { it >= 0 }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/resolver/AllCandidatesResolver.kt

@@ -30,6 +30,7 @@ import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.KtDeclaration
 import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.resolve.calls.tower.CandidateApplicability
+import org.jetbrains.kotlin.util.PrivateForInline
 
 class AllCandidatesResolver(private val firSession: FirSession) {
     private val scopeSession = ScopeSession()

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirAnnotationArgumentsLazyResolver.kt

@@ -12,7 +12,7 @@ import org.jetbrains.kotlin.analysis.low.level.api.fir.lazy.resolve.FirLazyBodie
 import org.jetbrains.kotlin.fir.FirElementWithResolveState
 import org.jetbrains.kotlin.fir.FirFileAnnotationsContainer
 import org.jetbrains.kotlin.fir.FirSession
-import org.jetbrains.kotlin.fir.PrivateForInline
+import org.jetbrains.kotlin.util.PrivateForInline
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.resolve.ResolutionMode
 import org.jetbrains.kotlin.fir.resolve.ScopeSession
@@ -127,4 +127,4 @@ internal val FirElementWithResolveState.isRegularDeclarationWithAnnotation: Bool
         is FirScript,
         -> true
         else -> false
-    }
+    }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirCompilerAnnotationsLazyResolver.kt

@@ -18,7 +18,7 @@ import org.jetbrains.kotlin.fir.FirAnnotationContainer
 import org.jetbrains.kotlin.fir.FirElementWithResolveState
 import org.jetbrains.kotlin.fir.FirFileAnnotationsContainer
 import org.jetbrains.kotlin.fir.FirSession
-import org.jetbrains.kotlin.fir.PrivateForInline
+import org.jetbrains.kotlin.util.PrivateForInline
 import org.jetbrains.kotlin.fir.caches.firCachesFactory
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.expressions.FirAnnotation
@@ -310,4 +310,4 @@ private fun FirAnnotationContainer.hasAnnotationsToResolve(): Boolean {
 
         else -> false
     }
-}
+}

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirTypeLazyResolver.kt

@@ -17,7 +17,7 @@ import org.jetbrains.kotlin.fir.FirAnnotationContainer
 import org.jetbrains.kotlin.fir.FirElementWithResolveState
 import org.jetbrains.kotlin.fir.FirFileAnnotationsContainer
 import org.jetbrains.kotlin.fir.FirSession
-import org.jetbrains.kotlin.fir.PrivateForInline
+import org.jetbrains.kotlin.util.PrivateForInline
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.resolve.ScopeSession
 import org.jetbrains.kotlin.fir.resolve.transformers.FirTypeResolveTransformer
@@ -144,4 +144,4 @@ private class LLFirTypeTargetResolver(
             }
         }
     }
-}
+}