FIR: check assignments and references to members in constructors

I.e. emit VAL_REASSIGNMENT on repeated assignments to `this.something`,
UNINITIALIZED_VARIABLE on reads of it before any assignment if there is
no initializer, and CAPTURED_MEMBER_VAL_INITIALIZATION on assignments
inside non-called-in-place functions and named classes.

^KT-55528 Fixed

compiler/testData/diagnostics/tests/controlFlowAnalysis/propertiesInitWithOtherInstance.fir.kt

@@ -3,9 +3,9 @@ class A(val next: A? = null) {
     init {
         next?.<!VAL_REASSIGNMENT!>x<!> = "a"
         x = "b"
-        this.x = "c"
-        x = "d" // don't repeat the same diagnostic again with this receiver
-        this.x = "e"
+        this.<!VAL_REASSIGNMENT!>x<!> = "c"
+        <!VAL_REASSIGNMENT!>x<!> = "d" // don't repeat the same diagnostic again with this receiver
+        this.<!VAL_REASSIGNMENT!>x<!> = "e"
 
         next?.<!VAL_REASSIGNMENT!>x<!> = "f"
     }