Prohibit instance access before super call

- Before this change members just left unresolved as they were absent in the
  specific scope named scopeForSecondaryConstructorHeaderResolution that
  created just to prohibit such accesses.
- Now they are resolved the same way as other members, but diagnostic is
  repored by in-place injected CallChecker
- Drop obsolete type of class scope

 #KT-6995 Fixed

idea/testData/completion/basic/common/InSecondaryConstructorFirstDefaultParameter.kt

@@ -9,5 +9,5 @@ class A(val prop: Int, arg: Int) {
     fun foo() = 1
 }
 
-// EXIST: abc, topLevel, x
-// ABSENT: arg, local, prop, another, foo
+// EXIST: abc, topLevel, x, prop, another, foo
+// ABSENT: arg, local