Fixed multiple bugs in optimize imports for JS-target

#KT-13689 Fixed

generators/src/org/jetbrains/kotlin/generators/tests/GenerateTests.kt

@@ -85,6 +85,8 @@ import org.jetbrains.kotlin.idea.folding.AbstractKotlinFoldingTest
 import org.jetbrains.kotlin.idea.hierarchy.AbstractHierarchyTest
 import org.jetbrains.kotlin.idea.hierarchy.AbstractHierarchyWithLibTest
 import org.jetbrains.kotlin.idea.highlighter.*
+import org.jetbrains.kotlin.idea.imports.AbstractJsOptimizeImportsTest
+import org.jetbrains.kotlin.idea.imports.AbstractJvmOptimizeImportsTest
 import org.jetbrains.kotlin.idea.imports.AbstractOptimizeImportsTest
 import org.jetbrains.kotlin.idea.intentions.AbstractIntentionTest
 import org.jetbrains.kotlin.idea.intentions.AbstractIntentionTest2
@@ -754,8 +756,13 @@ fun main(args: Array<String>) {
             model("decompiler/stubBuilder", extension = null, recursive = false)
         }
 
-        testClass<AbstractOptimizeImportsTest>() {
-            model("editor/optimizeImports", pattern = KT_WITHOUT_DOTS_IN_NAME)
+        testClass<AbstractJvmOptimizeImportsTest>() {
+            model("editor/optimizeImports/jvm", pattern = KT_WITHOUT_DOTS_IN_NAME)
+            model("editor/optimizeImports/common", pattern = KT_WITHOUT_DOTS_IN_NAME)
+        }
+        testClass<AbstractJsOptimizeImportsTest>() {
+            model("editor/optimizeImports/js", pattern = KT_WITHOUT_DOTS_IN_NAME)
+            model("editor/optimizeImports/common", pattern = KT_WITHOUT_DOTS_IN_NAME)
         }
 
         testClass<AbstractPositionManagerTest>() {

idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/TargetPlatformDetector.java

@@ -20,10 +20,13 @@ import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.module.Module;
 import com.intellij.openapi.roots.ProjectFileIndex;
 import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiFile;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.js.resolve.JsPlatform;
 import org.jetbrains.kotlin.psi.KtCodeFragment;
 import org.jetbrains.kotlin.psi.KtFile;
+import org.jetbrains.kotlin.psi.KtPsiFactoryKt;
 import org.jetbrains.kotlin.resolve.TargetPlatform;
 import org.jetbrains.kotlin.resolve.jvm.platform.JvmPlatform;
 
@@ -43,6 +46,12 @@ public class TargetPlatformDetector {
             }
         }
 
+        PsiElement context = KtPsiFactoryKt.getAnalysisContext(file);
+        if (context != null) {
+            PsiFile contextFile = context.getContainingFile();
+            return contextFile instanceof KtFile ? getPlatform((KtFile) contextFile) : JvmPlatform.INSTANCE;
+        }
+
         VirtualFile virtualFile = file.getOriginalFile().getVirtualFile();
         if (virtualFile == null) {
             return getDefaultPlatform();

idea/testData/editor/optimizeImports/common/TypeAliasUsage.kt

@@ -0,0 +1,5 @@
+import kotlin.Any
+
+fun foo(): Any  {
+    throw UnsupportedOperationException()
+}

idea/testData/editor/optimizeImports/common/TypeAliasUsage.kt.after

@@ -0,0 +1,3 @@
+fun foo(): Any  {
+    throw UnsupportedOperationException()
+}