Don't highlight declaration with WRAPPED_INTO_REF

Leave highlighting only for usage. This may allow to make highlighting more local and lazy.
Java follows the same rules for "Implicit anonymous class parameter".

idea/testData/checker/infos/WrapIntoRef.kt

@@ -1,36 +1,36 @@
 fun refs() {
-    var <info><warning>a</warning></info> = 1
+    var <warning>a</warning> = 1
     val <warning>v</warning> = {
       <info>a</info> = 2
     }
 
-    var <info><warning>x</warning></info> = 1
+    var <warning>x</warning> = 1
     val <warning>b</warning> = object {
         fun foo() {
             <info>x</info> = 2
         }
     }
 
-    var <info><warning>y</warning></info> = 1
+    var <warning>y</warning> = 1
     fun foo() {
         <info>y</info> = 1
     }
 }
 
 fun refsPlusAssign() {
-    var <info>a</info> = 1
+    var a = 1
     val <warning>v</warning> = {
       <info>a</info> += 2
     }
 
-    var <info>x</info> = 1
+    var x = 1
     val <warning>b</warning> = object {
         fun foo() {
             <info>x</info> += 2
         }
     }
 
-    var <info>y</info> = 1
+    var y = 1
     fun foo() {
         <info>y</info> += 1
     }