Rename platform to header.

js/js.frontend/src/org/jetbrains/kotlin/js/resolve/JsPlatformConfigurator.kt

@@ -25,7 +25,7 @@ import org.jetbrains.kotlin.resolve.IdentifierChecker
 import org.jetbrains.kotlin.resolve.OverloadFilter
 import org.jetbrains.kotlin.resolve.PlatformConfigurator
 import org.jetbrains.kotlin.resolve.calls.checkers.ReifiedTypeParameterSubstitutionChecker
-import org.jetbrains.kotlin.resolve.checkers.PlatformImplDeclarationChecker
+import org.jetbrains.kotlin.resolve.checkers.HeaderImplDeclarationChecker
 import org.jetbrains.kotlin.resolve.scopes.SyntheticConstructorsProvider
 import org.jetbrains.kotlin.resolve.scopes.SyntheticScopes
 import org.jetbrains.kotlin.types.DynamicTypesAllowed
@@ -35,9 +35,10 @@ object JsPlatformConfigurator : PlatformConfigurator(
         additionalDeclarationCheckers = listOf(
                 NativeInvokeChecker(), NativeGetterChecker(), NativeSetterChecker(),
                 JsNameChecker, JsModuleChecker,
-                PlatformImplDeclarationChecker(),
                 JsExternalChecker(),
-                JsRuntimeAnnotationChecker
+                JsRuntimeAnnotationChecker,
+                HeaderImplDeclarationChecker(),
+                JsExternalChecker()
         ),
         additionalCallCheckers = listOf(ReifiedTypeParameterSubstitutionChecker(), JsModuleCallChecker, JsDynamicCallChecker),
         additionalTypeCheckers = listOf(),

js/js.frontend/src/org/jetbrains/kotlin/js/resolve/diagnostics/JsNameClashChecker.kt

@@ -55,7 +55,7 @@ class JsNameClashChecker : SimpleDeclarationChecker {
             val scope = getScope(suggested.scope)
             val name = suggested.names.last()
             val existing = scope[name]
-            if (existing != null && existing != suggested.descriptor && !(existing is MemberDescriptor && existing.isPlatform)) {
+            if (existing != null && existing != suggested.descriptor && !(existing is MemberDescriptor && existing.isHeader)) {
                 diagnosticHolder.report(ErrorsJs.JS_NAME_CLASH.on(declaration, name, existing))
                 val existingDeclaration = existing.findPsi()
                 if (clashedDescriptors.add(existing) && existingDeclaration is KtDeclaration && existingDeclaration != declaration) {

js/js.frontend/src/org/jetbrains/kotlin/js/translate/utils/AnnotationsUtils.java

@@ -160,7 +160,7 @@ public final class AnnotationsUtils {
     }
 
     public static boolean isPredefinedObject(@NotNull DeclarationDescriptor descriptor) {
-        if (descriptor instanceof MemberDescriptor && ((MemberDescriptor) descriptor).isPlatform()) return true;
+        if (descriptor instanceof MemberDescriptor && ((MemberDescriptor) descriptor).isHeader()) return true;
         if (isEffectivelyExternal(descriptor)) return true;
 
         for (PredefinedAnnotation annotation : PredefinedAnnotation.values()) {