Used idea SmartList and SingletonList in some cases instead ArrayList.

Removed unused imports.

js/js.translator/src/org/jetbrains/k2js/translate/expression/TryTranslator.java

@@ -16,11 +16,8 @@
 
 package org.jetbrains.k2js.translate.expression;
 
-import com.google.common.collect.Lists;
+import com.google.dart.compiler.backend.js.ast.*;
-import com.google.dart.compiler.backend.js.ast.JsBlock;
+import com.intellij.util.SmartList;
-import com.google.dart.compiler.backend.js.ast.JsCatch;
-import com.google.dart.compiler.backend.js.ast.JsName;
-import com.google.dart.compiler.backend.js.ast.JsTry;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.psi.*;
@@ -70,7 +67,7 @@ public final class TryTranslator extends AbstractTranslator {
 
     @NotNull
     private List<JsCatch> translateCatches() {
-        List<JsCatch> result = Lists.newArrayList();
+        List<JsCatch> result = new SmartList<JsCatch>();
         for (JetCatchClause catchClause : expression.getCatchClauses()) {
             result.add(translateCatchClause(catchClause));
         }

js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/basic/CallStandardMethodIntrinsic.java

@@ -16,10 +16,10 @@
 
 package org.jetbrains.k2js.translate.intrinsic.functions.basic;
 
-import com.google.common.collect.Lists;
 import com.google.dart.compiler.backend.js.ast.JsExpression;
 import com.google.dart.compiler.backend.js.ast.JsInvocation;
 import com.google.dart.compiler.backend.js.ast.JsNameRef;
+import com.intellij.util.SmartList;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.k2js.translate.context.TranslationContext;
@@ -60,8 +60,7 @@ public final class CallStandardMethodIntrinsic extends FunctionIntrinsic {
     @NotNull
     private static List<JsExpression> composeArguments(@Nullable JsExpression receiver, @NotNull List<JsExpression> arguments) {
         if (receiver != null) {
-            List<JsExpression> args = Lists.newArrayList();
+            List<JsExpression> args = new SmartList<JsExpression>(receiver);
-            args.add(receiver);
             args.addAll(arguments);
             return args;
         }

js/js.translator/src/org/jetbrains/k2js/translate/reference/AbstractCallExpressionTranslator.java

@@ -30,7 +30,6 @@ import org.jetbrains.k2js.translate.context.TranslationContext;
 import org.jetbrains.k2js.translate.general.AbstractTranslator;
 import org.jetbrains.k2js.translate.general.Translation;
 
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
@@ -69,13 +68,13 @@ public abstract class AbstractCallExpressionTranslator extends AbstractTranslato
         }
         if (actualArgument instanceof DefaultValueArgument) {
             JetExpression defaultArgument = getDefaultArgument(bindingContext(), parameterDescriptor);
-            return Arrays.asList(Translation.translateAsExpression(defaultArgument, context()));
+            return Collections.singletonList(Translation.translateAsExpression(defaultArgument, context()));
         }
         assert actualArgument instanceof ExpressionValueArgument;
         assert valueArguments.size() == 1;
         JetExpression argumentExpression = valueArguments.get(0).getArgumentExpression();
         assert argumentExpression != null;
-        return Arrays.asList(Translation.translateAsExpression(argumentExpression, context()));
+        return Collections.singletonList(Translation.translateAsExpression(argumentExpression, context()));
     }
 
     @NotNull

js/js.translator/src/org/jetbrains/k2js/translate/utils/TranslationUtils.java

@@ -17,6 +17,7 @@
 package org.jetbrains.k2js.translate.utils;
 
 import com.google.dart.compiler.backend.js.ast.*;
+import com.intellij.util.SmartList;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
@@ -28,6 +29,7 @@ import org.jetbrains.k2js.translate.context.TranslationContext;
 import org.jetbrains.k2js.translate.general.Translation;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 import static org.jetbrains.k2js.translate.utils.BindingUtils.getFunctionDescriptorForOperationExpression;
@@ -76,7 +78,11 @@ public final class TranslationUtils {
     @NotNull
     public static List<JsExpression> translateArgumentList(@NotNull TranslationContext context,
             @NotNull List<? extends ValueArgument> jetArguments) {
-        List<JsExpression> jsArguments = new ArrayList<JsExpression>();
+        if (jetArguments.isEmpty()) {
+            return Collections.emptyList();
+        }
+
+        List<JsExpression> jsArguments = new SmartList<JsExpression>();
         for (ValueArgument argument : jetArguments) {
             jsArguments.add(translateArgument(context, argument));
         }