Drop JetFilesProvider#allPackageFiles() and sampleToAllFilesInModule()

compiler/cli/src/org/jetbrains/jet/cli/jvm/compiler/CliJetFilesProvider.java

@@ -22,7 +22,6 @@ import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.resolve.java.JetFilesProvider;
 
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 
 public class CliJetFilesProvider extends JetFilesProvider {
@@ -32,11 +31,6 @@ public class CliJetFilesProvider extends JetFilesProvider {
         this.environment = environment;
     }
 
-    @Override
-    protected Collection<JetFile> sampleToAllFilesInModule(@NotNull JetFile file) {
-        return environment.getSourceFiles();
-    }
-
     @NotNull
     @Override
     public List<JetFile> allInScope(@NotNull GlobalSearchScope scope) {

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JetFilesProvider.java

@@ -16,15 +16,11 @@
 
 package org.jetbrains.jet.lang.resolve.java;
 
-import com.google.common.base.Predicate;
-import com.google.common.collect.Collections2;
 import com.intellij.openapi.components.ServiceManager;
 import com.intellij.openapi.project.Project;
-import com.intellij.psi.PsiFile;
 import com.intellij.psi.search.GlobalSearchScope;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.psi.JetFile;
-import org.jetbrains.jet.lang.resolve.name.FqName;
 
 import java.util.Collection;
 
@@ -34,17 +30,6 @@ public abstract class JetFilesProvider {
         return ServiceManager.getService(project, JetFilesProvider.class);
     }
 
-    public final Collection<JetFile> allPackageFiles(@NotNull JetFile file) {
-        final FqName name = file.getPackageFqName();
-        return Collections2.filter(sampleToAllFilesInModule(file), new Predicate<PsiFile>() {
-            @Override
-            public boolean apply(PsiFile psiFile) {
-                return ((JetFile) psiFile).getPackageFqName().equals(name);
-            }
-        });
-    }
-
-    protected abstract Collection<JetFile> sampleToAllFilesInModule(@NotNull JetFile file);
     @NotNull
     public abstract Collection<JetFile> allInScope(@NotNull GlobalSearchScope scope);
     public abstract boolean isFileInScope(@NotNull JetFile file, @NotNull GlobalSearchScope scope);

idea/src/org/jetbrains/jet/plugin/project/PluginJetFilesProvider.java

@@ -43,7 +43,10 @@ import org.jetbrains.jet.lang.resolve.java.JetFilesProvider;
 import org.jetbrains.jet.plugin.JetFileType;
 import org.jetbrains.jet.plugin.JetPluginUtil;
 
-import java.util.*;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
 
 public class PluginJetFilesProvider extends JetFilesProvider {
     private final Project project;
@@ -103,11 +106,6 @@ public class PluginJetFilesProvider extends JetFilesProvider {
         return files;
     }
 
-    @Override
-    protected Collection<JetFile> sampleToAllFilesInModule(@NotNull JetFile file) {
-        return allFilesInProject(file);
-    }
-
     private boolean isKotlinSourceVirtualFile(@NotNull VirtualFile virtualFile) {
         return ProjectFileIndex.SERVICE.getInstance(project).isInSourceContent(virtualFile) &&
                !JetPluginUtil.isKtFileInGradleProjectInWrongFolder(virtualFile, project);