Rename PlatformTypesMappedToKotlinChecker -> PlatformClassesMappedToKotlinChecker

To prevent confusion with the term "platform type" which has gained a new
meaning since this class was introduced

compiler/frontend/src/org/jetbrains/kotlin/resolve/PlatformClassesMappedToKotlinChecker.java

@@ -28,8 +28,8 @@ import java.util.Collection;
 
 import static org.jetbrains.kotlin.diagnostics.Errors.PLATFORM_CLASS_MAPPED_TO_KOTLIN;
 
-public class PlatformTypesMappedToKotlinChecker {
-    public static void checkPlatformTypesMappedToKotlin(
+public class PlatformClassesMappedToKotlinChecker {
+    public static void checkPlatformClassesMappedToKotlin(
             @NotNull PlatformToKotlinClassMap platformToKotlinMap,
             @NotNull BindingTrace trace,
             @NotNull KtImportDirective importDirective,

compiler/frontend/src/org/jetbrains/kotlin/resolve/TypeResolver.kt

@@ -765,7 +765,7 @@ class TypeResolver(
 
         return qualifiedExpressionResolver.resolveDescriptorForType(userType, scope, trace, isDebuggerContext).apply {
             if (classifierDescriptor != null) {
-                PlatformTypesMappedToKotlinChecker.reportPlatformClassMappedToKotlin(
+                PlatformClassesMappedToKotlinChecker.reportPlatformClassMappedToKotlin(
                         platformToKotlinClassMap, trace, userType, classifierDescriptor
                 )
             }

compiler/frontend/src/org/jetbrains/kotlin/resolve/lazy/LazyImportScope.kt

@@ -29,7 +29,7 @@ import org.jetbrains.kotlin.platform.PlatformToKotlinClassMap
 import org.jetbrains.kotlin.psi.KtImportDirective
 import org.jetbrains.kotlin.psi.KtPsiUtil
 import org.jetbrains.kotlin.resolve.BindingTrace
-import org.jetbrains.kotlin.resolve.PlatformTypesMappedToKotlinChecker
+import org.jetbrains.kotlin.resolve.PlatformClassesMappedToKotlinChecker
 import org.jetbrains.kotlin.resolve.QualifiedExpressionResolver
 import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
 import org.jetbrains.kotlin.resolve.scopes.ImportingScope
@@ -88,7 +88,7 @@ class LazyImportResolver(
                 directive, moduleDescriptor, traceForImportResolve, excludedImportNames, packageFragment
         )?.apply {
             if (!directive.isAllUnder) {
-                PlatformTypesMappedToKotlinChecker.checkPlatformTypesMappedToKotlin(
+                PlatformClassesMappedToKotlinChecker.checkPlatformClassesMappedToKotlin(
                         platformToKotlinClassMap, traceForImportResolve, directive, getContributedDescriptors()
                 )
             }