FIR checker: pluralize top-level/member function/property checkers

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

@@ -15,7 +15,7 @@ import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.lexer.KtTokens
 
 // See old FE's [DeclarationsChecker]
-object FirMemberFunctionChecker : FirRegularClassChecker() {
+object FirMemberFunctionsChecker : FirRegularClassChecker() {
     override fun check(declaration: FirRegularClass, context: CheckerContext, reporter: DiagnosticReporter) {
         for (member in declaration.declarations) {
             if (member is FirSimpleFunction) {

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

@@ -27,7 +27,7 @@ import org.jetbrains.kotlin.fir.symbols.impl.FirPropertySymbol
 import org.jetbrains.kotlin.lexer.KtTokens
 
 // See old FE's [DeclarationsChecker]
-object FirMemberPropertyChecker : FirRegularClassChecker() {
+object FirMemberPropertiesChecker : FirRegularClassChecker() {
     override fun check(declaration: FirRegularClass, context: CheckerContext, reporter: DiagnosticReporter) {
         val memberPropertySymbols = declaration.declarations.filterIsInstance<FirProperty>().map { it.symbol }.toSet()
         val initializedInConstructor =

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

@@ -14,7 +14,7 @@ import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.lexer.KtTokens
 
 // See old FE's [DeclarationsChecker]
-object FirTopLevelFunctionChecker : FirFileChecker() {
+object FirTopLevelFunctionsChecker : FirFileChecker() {
     override fun check(declaration: FirFile, context: CheckerContext, reporter: DiagnosticReporter) {
         for (topLevelDeclaration in declaration.declarations) {
             if (topLevelDeclaration is FirSimpleFunction) {

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

@@ -12,7 +12,7 @@ import org.jetbrains.kotlin.fir.declarations.FirFile
 import org.jetbrains.kotlin.fir.declarations.FirProperty
 
 // See old FE's [DeclarationsChecker]
-object FirTopLevelPropertyChecker : FirFileChecker() {
+object FirTopLevelPropertiesChecker : FirFileChecker() {
     override fun check(declaration: FirFile, context: CheckerContext, reporter: DiagnosticReporter) {
         for (topLevelDeclaration in declaration.declarations) {
             if (topLevelDeclaration is FirProperty) {

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

@@ -59,8 +59,8 @@ object CommonDeclarationCheckers : DeclarationCheckers() {
         FirSupertypeInitializedInInterfaceChecker,
         FirSupertypeInitializedWithoutPrimaryConstructor,
         FirTypeParametersInObjectChecker,
-        FirMemberFunctionChecker,
+        FirMemberFunctionsChecker,
-        FirMemberPropertyChecker,
+        FirMemberPropertiesChecker,
         FirNestedClassChecker,
     )
 
@@ -69,8 +69,8 @@ object CommonDeclarationCheckers : DeclarationCheckers() {
     )
 
     override val fileCheckers: Set<FirFileChecker> = setOf(
-        FirTopLevelFunctionChecker,
+        FirTopLevelFunctionsChecker,
-        FirTopLevelPropertyChecker,
+        FirTopLevelPropertiesChecker,
     )
 
     override val controlFlowAnalyserCheckers: Set<FirControlFlowChecker> = setOf(