Refactor: Introduce JetElement#resolveToElement utility

idea/idea-analysis/src/org/jetbrains/jet/plugin/caches/resolve/resolutionApi.kt

@@ -35,6 +35,10 @@ public fun JetDeclaration.resolveToDescriptor(): DeclarationDescriptor {
     return getLazyResolveSession().resolveToDescriptor(this)
 }
 
+public fun JetElement.resolveToElement(): BindingContext {
+    return getLazyResolveSession().resolveToElement(this)
+}
+
 public fun JetElement.getBindingContext(): BindingContext {
     return getAnalysisResults().bindingContext
 }

idea/idea-analysis/src/org/jetbrains/jet/plugin/project/AnalyzerFacadeWithCache.java

@@ -19,7 +19,6 @@ package org.jetbrains.jet.plugin.project;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.psi.JetElement;
 import org.jetbrains.jet.lang.resolve.BindingContext;
-import org.jetbrains.jet.plugin.caches.resolve.ResolutionFacade;
 import org.jetbrains.jet.plugin.caches.resolve.ResolvePackage;
 
 public final class AnalyzerFacadeWithCache {
@@ -29,7 +28,6 @@ public final class AnalyzerFacadeWithCache {
 
     @NotNull
     public static BindingContext getContextForElement(@NotNull JetElement jetElement) {
-        ResolutionFacade resolveSessionForBodies = ResolvePackage.getLazyResolveSession(jetElement);
+        return ResolvePackage.resolveToElement(jetElement);
-        return resolveSessionForBodies.resolveToElement(jetElement);
     }
 }

idea/src/org/jetbrains/jet/plugin/intentions/ConvertToForEachLoopIntention.kt

@@ -24,9 +24,9 @@ import org.jetbrains.jet.lang.psi.JetExpression
 import org.jetbrains.jet.lang.psi.JetDotQualifiedExpression
 import org.jetbrains.jet.lang.psi.JetBinaryExpression
 import org.jetbrains.jet.lang.resolve.DescriptorUtils
-import org.jetbrains.jet.plugin.caches.resolve.getLazyResolveSession
 import org.jetbrains.jet.lang.psi.JetParenthesizedExpression
 import org.jetbrains.jet.lang.resolve.calls.callUtil.getResolvedCall
+import org.jetbrains.jet.plugin.caches.resolve.resolveToElement
 
 public class ConvertToForEachLoopIntention : JetSelfTargetingIntention<JetExpression>("convert.to.for.each.loop.intention", javaClass()) {
     private fun getFunctionLiteralArgument(element: JetExpression): JetFunctionLiteralExpression? {
@@ -78,7 +78,7 @@ public class ConvertToForEachLoopIntention : JetSelfTargetingIntention<JetExpres
             isWellFormedFunctionLiteral(functionLiteral) &&
             checkTotalNumberOfArguments(element)) {
 
-            val context = element.getContainingJetFile().getLazyResolveSession().resolveToElement(element)
+            val context = element.resolveToElement()
             val resolvedCall = element.getResolvedCall(context)
             val functionFqName = if (resolvedCall != null) DescriptorUtils.getFqName(resolvedCall.getResultingDescriptor()).toString() else null
 

idea/src/org/jetbrains/jet/plugin/intentions/Utils.kt

@@ -23,8 +23,8 @@ import org.jetbrains.jet.lang.descriptors.FunctionDescriptor
 import org.jetbrains.jet.plugin.codeInsight.ShortenReferences
 import org.jetbrains.jet.JetNodeTypes
 import org.jetbrains.jet.lexer.JetTokens
-import org.jetbrains.jet.plugin.caches.resolve.getLazyResolveSession
 import org.jetbrains.jet.plugin.util.IdeDescriptorRenderers
+import org.jetbrains.jet.plugin.caches.resolve.resolveToElement
 
 fun specifyTypeExplicitly(declaration: JetNamedFunction, typeText: String) {
     specifyTypeExplicitly(declaration, JetPsiFactory(declaration).createType(typeText))
@@ -44,14 +44,12 @@ fun specifyTypeExplicitly(declaration: JetNamedFunction, typeReference: JetTypeR
 }
 
 fun expressionType(expression: JetExpression): JetType? {
-    val resolveSession = expression.getLazyResolveSession()
+    val bindingContext = expression.resolveToElement()
-    val bindingContext = resolveSession.resolveToElement(expression)
     return bindingContext.get(BindingContext.EXPRESSION_TYPE, expression)
 }
 
 fun functionReturnType(function: JetNamedFunction): JetType? {
-    val resolveSession = function.getLazyResolveSession()
+    val bindingContext = function.resolveToElement()
-    val bindingContext = resolveSession.resolveToElement(function)
     val descriptor = bindingContext.get(BindingContext.DECLARATION_TO_DESCRIPTOR, function)
     if (descriptor == null) return null
     return (descriptor as FunctionDescriptor).getReturnType()

idea/src/org/jetbrains/jet/plugin/refactoring/jetRefactoringUtil.kt

@@ -16,17 +16,10 @@
 
 package org.jetbrains.jet.plugin.refactoring
 
-import org.jetbrains.jet.lang.resolve.name.FqName
-import org.jetbrains.jet.lang.psi.psiUtil.getQualifiedElement
-import org.jetbrains.jet.lang.resolve.name.isOneSegmentFQN
 import com.intellij.psi.PsiElement
 import com.intellij.openapi.util.Key
 import com.intellij.psi.PsiDirectory
 import com.intellij.openapi.roots.JavaProjectRootsUtil
-import com.intellij.psi.PsiPackage
-import com.intellij.psi.PsiClass
-import com.intellij.psi.PsiMember
-import org.jetbrains.jet.asJava.namedUnwrappedElement
 import com.intellij.psi.util.PsiTreeUtil
 import com.intellij.refactoring.util.ConflictsUtil
 import org.jetbrains.jet.lang.psi.psiUtil.getPackage
@@ -65,7 +58,6 @@ import com.intellij.psi.PsiDocumentManager
 import org.jetbrains.jet.lang.resolve.BindingContext
 import org.jetbrains.jet.lang.psi.psiUtil.getParentByType
 import org.jetbrains.jet.lang.psi.psiUtil.isAncestor
-import org.jetbrains.jet.plugin.caches.resolve.getLazyResolveSession
 import com.intellij.psi.PsiNamedElement
 import org.jetbrains.jet.plugin.project.AnalyzerFacadeWithCache
 import org.jetbrains.jet.lang.descriptors.FunctionDescriptor
@@ -73,6 +65,7 @@ import org.jetbrains.jet.renderer.DescriptorRenderer
 import com.intellij.openapi.util.text.StringUtil
 import javax.swing.Icon
 import org.jetbrains.jet.plugin.util.string.collapseSpaces
+import org.jetbrains.jet.plugin.caches.resolve.resolveToElement
 
 fun <T: Any> PsiElement.getAndRemoveCopyableUserData(key: Key<T>): T? {
     val data = getCopyableUserData(key)
@@ -280,7 +273,7 @@ public fun JetElement.getContextForContainingDeclarationBody(): BindingContext?
         }
         else -> null
     }
-    return bodyElement?.let { getContainingJetFile().getLazyResolveSession().resolveToElement(it) }
+    return bodyElement?.let { it.resolveToElement() }
 }
 
 public fun chooseContainerElement<T>(