[FIR] Report VAL_REASSIGNMENT on assign to non-local vals

In this commit reporting on member properties in init section of class
  is not supported (see KT-55528)

^KT-55493 Fixed

compiler/testData/diagnostics/tests/LValueAssignment.fir.kt

@@ -11,14 +11,14 @@ class C() : B() {
         this.x = 34
         this.b = 123
         super.b = 23
-        this.c = 34
-        super.c = 3535 //repeat for 'c'
+        this.<!VAL_REASSIGNMENT!>c<!> = 34
+        super.<!VAL_REASSIGNMENT!>c<!> = 3535 //repeat for 'c'
 
         <!VARIABLE_EXPECTED!>getInt()<!> = 12
     }
 
     fun foo1(c: C) {
-        super.c = 34
+        super.<!VAL_REASSIGNMENT!>c<!> = 34
     }
 
     fun bar(c: C) {