Refactoring. Replace hasModifier(IMPL_KEYWORD) to hasImplModifier()

idea/src/org/jetbrains/kotlin/idea/highlighter/markers/KotlinLineMarkerProvider.kt

@@ -49,6 +49,7 @@ import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
 import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.hasHeaderModifier
+import org.jetbrains.kotlin.psi.psiUtil.hasImplModifier
 import java.awt.event.MouseEvent
 import java.util.*
 import javax.swing.Icon
@@ -102,7 +103,7 @@ class KotlinLineMarkerProvider : LineMarkerProvider {
             if (element.hasHeaderModifier()) {
                 collectImplementationMarkers(element, result)
             }
-            else if (element.hasModifier(KtTokens.IMPL_KEYWORD)) {
+            else if (element.hasImplModifier()) {
                 collectHeaderMarkers(element, result)
             }
         }

idea/src/org/jetbrains/kotlin/idea/inspections/UnusedSymbolInspection.kt

@@ -326,7 +326,7 @@ class UnusedSymbolInspection : AbstractKotlinInspection() {
     }
 
     private fun isPlatformImplementation(declaration: KtNamedDeclaration) =
-            declaration.hasModifier(KtTokens.IMPL_KEYWORD)
+            declaration.hasImplModifier()
 
     private fun hasPlatformImplementations(declaration: KtNamedDeclaration, descriptor: DeclarationDescriptor?): Boolean {
         if (!declaration.hasHeaderModifier()) return false