Do not cache contents in VFS when reading contents of .jar files

This follows the standard IDEA policy of caching file contents.

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ClsJavaStubByVirtualFileCache.kt

@@ -48,7 +48,7 @@ class ClsJavaStubByVirtualFileCache {
         if (file.fileType !== JavaClassFileType.INSTANCE) return null
 
         try {
-            return ClsFileImpl.buildFileStub(file, file.contentsToByteArray())
+            return ClsFileImpl.buildFileStub(file, file.contentsToByteArray(false))
         }
         catch (e: ClsFormatException) {
             LOG.error("Failed to build java cls class for " + file.canonicalPath!!, e)

idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/common/KotlinMetadataDecompiler.kt

@@ -72,7 +72,7 @@ abstract class KotlinMetadataDecompiler<out V : BinaryVersion>(
         if (!file.isValid) return null
 
         return try {
-            readFile(file.contentsToByteArray(), file)
+            readFile(file.contentsToByteArray(false), file)
         }
         catch (e: IOException) {
             // This is needed because sometimes we're given VirtualFile instances that point to non-existent .jar entries.

idea/src/org/jetbrains/kotlin/idea/debugger/NoStrataPositionManagerHelper.kt

@@ -141,7 +141,7 @@ private fun readClassFileImpl(project: Project,
 
         val fileFinder = VirtualFileFinder.getInstance(project)
         val classFile = fileFinder.findVirtualFileWithHeader(classId) ?: return null
-        return classFile.contentsToByteArray()
+        return classFile.contentsToByteArray(false)
     }
 
     fun readFromOutput(isForTestClasses: Boolean): ByteArray? {

idea/src/org/jetbrains/kotlin/idea/internal/KotlinDecompilerServiceImpl.kt

@@ -69,7 +69,7 @@ class KotlinDecompilerServiceImpl : KotlinDecompilerService {
                 }.map { it.path to it }
 
         return files.entries.associate {
-            Pair(File(it.key), { it.value.contentsToByteArray() })
+            Pair(File(it.key), { it.value.contentsToByteArray(false) })
         }
     }