[FIR] Turn some checkers into classes to prevent memory leaks

This is temporary solution until those checkers will be fixed
#KT-46058

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/declaration/FirInapplicableLateinitChecker.kt

@@ -18,7 +18,7 @@ import org.jetbrains.kotlin.fir.types.ConeTypeParameterType
 import org.jetbrains.kotlin.fir.types.coneType
 import org.jetbrains.kotlin.fir.types.isNullable
 
-object FirInapplicableLateinitChecker : FirPropertyChecker() {
+class FirInapplicableLateinitChecker : FirPropertyChecker() {
     var primitives: Set<ConeKotlinType>? = null
 
     private fun getPrimitiveTypes(context: CheckerContext) = primitives ?: mutableSetOf<ConeKotlinType>().apply {

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/declaration/FirInlineClassDeclarationChecker.kt

@@ -22,7 +22,7 @@ import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.types.AbstractTypeChecker
 
-object FirInlineClassDeclarationChecker : FirRegularClassChecker() {
+class FirInlineClassDeclarationChecker : FirRegularClassChecker() {
 
     private val reservedFunctionNames = setOf("box", "unbox", "equals", "hashCode")
     private val kotlinCloneableType = ClassId.fromString("kotlin/Cloneable").constructClassLikeType(emptyArray(), false)
@@ -215,4 +215,4 @@ object FirInlineClassDeclarationChecker : FirRegularClassChecker() {
         return AbstractTypeChecker.isSubtypeOf(typeContext, coneType, kotlinCloneableType) ||
                 AbstractTypeChecker.isSubtypeOf(typeContext, coneType, javaCloneableType)
     }
-}
+}

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/declaration/FirMethodOfAnyImplementedInInterfaceChecker.kt

@@ -16,7 +16,7 @@ import org.jetbrains.kotlin.fir.resolve.symbolProvider
 import org.jetbrains.kotlin.name.CallableId
 import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
-object FirMethodOfAnyImplementedInInterfaceChecker : FirRegularClassChecker(), FirDeclarationPresenter {
+class FirMethodOfAnyImplementedInInterfaceChecker : FirRegularClassChecker(), FirDeclarationPresenter {
     private var inspector: FirDeclarationInspector? = null
 
     private fun getInspector(context: CheckerContext) = inspector ?: FirDeclarationInspector(this).apply {

compiler/fir/entrypoint/src/org/jetbrains/kotlin/fir/checkers/CommonDeclarationCheckers.kt

@@ -45,7 +45,7 @@ object CommonDeclarationCheckers : DeclarationCheckers() {
 
     override val propertyCheckers: Set<FirPropertyChecker>
         get() = setOf(
-            FirInapplicableLateinitChecker,
+            FirInapplicableLateinitChecker(),
             FirDestructuringDeclarationChecker,
             FirConstPropertyChecker,
             FirPropertyAccessorChecker,
@@ -72,14 +72,14 @@ object CommonDeclarationCheckers : DeclarationCheckers() {
             FirInterfaceWithSuperclassChecker,
             FirLocalEntityNotAllowedChecker,
             FirManyCompanionObjectsChecker,
-            FirMethodOfAnyImplementedInInterfaceChecker,
+            FirMethodOfAnyImplementedInInterfaceChecker(),
             FirDataClassPrimaryConstructorChecker,
             FirPrimaryConstructorSuperTypeChecker,
             FirTypeParametersInObjectChecker,
             FirMemberFunctionsChecker,
             FirMemberPropertiesChecker,
             FirNestedClassChecker,
-            FirInlineClassDeclarationChecker,
+            FirInlineClassDeclarationChecker(),
         )
 
     override val constructorCheckers: Set<FirConstructorChecker>