[CMI] Fix rendering metainfos at the end of file

compiler/tests-common/tests/org/jetbrains/kotlin/codeMetaInfo/CodeMetaInfoRenderer.kt

@@ -30,12 +30,31 @@ object CodeMetaInfoRenderer {
             builder.append(originalText)
             return
         }
-        val sortedMetaInfos = getSortedCodeMetaInfos(codeMetaInfos)
+        val sortedMetaInfos = getSortedCodeMetaInfos(codeMetaInfos).groupBy { it.start }
         val opened = Stack<CodeMetaInfo>()
 
         for ((i, c) in originalText.withIndex()) {
-            checkOpenedAndCloseStringIfNeeded(opened, i, builder)
+            processMetaInfosStartedAtOffset(i, sortedMetaInfos, opened, builder)
-            val matchedCodeMetaInfos = sortedMetaInfos.filter { it.start == i }
+            builder.append(c)
+        }
+        val lastSymbolIsNewLine = builder.last() == '\n'
+        if (lastSymbolIsNewLine) {
+            builder.deleteCharAt(builder.length - 1)
+        }
+        processMetaInfosStartedAtOffset(originalText.length, sortedMetaInfos, opened, builder)
+        if (lastSymbolIsNewLine) {
+            builder.appendLine()
+        }
+    }
+
+    private fun processMetaInfosStartedAtOffset(
+        offset: Int,
+        sortedMetaInfos: Map<Int, List<CodeMetaInfo>>,
+        opened: Stack<CodeMetaInfo>,
+        builder: StringBuilder
+    ) {
+        checkOpenedAndCloseStringIfNeeded(opened, offset, builder)
+        val matchedCodeMetaInfos = sortedMetaInfos[offset] ?: emptyList()
         if (matchedCodeMetaInfos.isNotEmpty()) {
             openStartTag(builder)
             val iterator = matchedCodeMetaInfos.listIterator()
@@ -57,10 +76,7 @@ object CodeMetaInfoRenderer {
             }
         }
         // Here we need to handle meta infos which has start == end and close them immediately
-            checkOpenedAndCloseStringIfNeeded(opened, i, builder)
+        checkOpenedAndCloseStringIfNeeded(opened, offset, builder)
-            builder.append(c)
-        }
-        checkOpenedAndCloseStringIfNeeded(opened, originalText.length, builder)
     }
 
     private val metaInfoComparator = (compareBy<CodeMetaInfo> { it.start } then compareByDescending { it.end }) then compareBy { it.tag }