Fixed doc-comment not attached to the first declaration with no package directive + incorrect placement of comments for enum entry

compiler/testData/psi/LineCommentAfterFileAnnotations.txt

@@ -0,0 +1,25 @@
+JetFile: LineCommentAfterFileAnnotations.kt
+  FILE_ANNOTATION_LIST
+    ANNOTATION
+      PsiElement(LBRACKET)('[')
+      PsiElement(file)('file')
+      PsiElement(COLON)(':')
+      ANNOTATION_ENTRY
+        CONSTRUCTOR_CALLEE
+          TYPE_REFERENCE
+            USER_TYPE
+              REFERENCE_EXPRESSION
+                PsiElement(IDENTIFIER)('volatile')
+      PsiElement(RBRACKET)(']')
+  PsiWhiteSpace('\n')
+  PACKAGE_DIRECTIVE
+    <empty list>
+  CLASS
+    PsiComment(EOL_COMMENT)('// class C')
+    PsiWhiteSpace('\n')
+    PsiElement(class)('class')
+    PsiWhiteSpace(' ')
+    PsiElement(IDENTIFIER)('C')
+    CLASS_BODY
+      PsiElement(LBRACE)('{')
+      PsiElement(RBRACE)('}')