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/secondaryConstructors/propertyInitializationWithPrimary.fir.kt

@@ -11,7 +11,7 @@ class A(val w: Char) {
     constructor(): this('a') {
         y = 1
 
-        overinitialized = 2
+        <!VAL_REASSIGNMENT!>overinitialized<!> = 2
         uninitialized = 3
     }
 

compiler/testData/diagnostics/tests/secondaryConstructors/propertyInitializationWithoutPrimary.fir.kt

@@ -1,39 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-class A {
-    val x: Int
-    var y: Int
-    val z: Int
-    val v = -1
-
-    <!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val uninitialized: Int<!>
-    val overinitialized: Int
-
-    constructor() {
-        x = 1
-        y = 2
-
-        overinitialized = 3
-        uninitialized = 4
-    }
-
-    constructor(a: Int): super() {
-        x = 5
-        y = 6
-    }
-
-    constructor(x: String): this() {
-        y = 7
-        uninitialized = 8
-    }
-
-    //anonymous
-    init {
-        z = 9
-        overinitialized = 10
-    }
-
-    // anonymous
-    init {
-        y = 12
-    }
-}

compiler/testData/diagnostics/tests/secondaryConstructors/propertyInitializationWithoutPrimary.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 class A {
     val x: Int

compiler/testData/diagnostics/tests/secondaryConstructors/useOfPropertiesWithPrimary.fir.kt

@@ -1,8 +1,8 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 class A(val w: Int) {
     val x: Int
-    val useUnitialized = x +
-                         y +
+    val useUnitialized = <!UNINITIALIZED_VARIABLE!>x<!> +
+                         <!UNINITIALIZED_VARIABLE!>y<!> +
                          v
     var y: Int
     val v = -1
@@ -11,20 +11,20 @@ class A(val w: Int) {
     <!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val uninitialized: Int<!>
 
     constructor(): this(1) {
-        x + y + v + uninitialized + w
+        x + y + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!> + w
     }
 
     // anonymous
     init {
-        x + y + v + uninitialized + w
+        <!UNINITIALIZED_VARIABLE!>x<!> + <!UNINITIALIZED_VARIABLE!>y<!> + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!> + w
         x = 1
-        x + y + v + uninitialized + w
+        x + <!UNINITIALIZED_VARIABLE!>y<!> + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!> + w
     }
 
     // anonymous
     init {
-        x + y + v + uninitialized + w
+        x + <!UNINITIALIZED_VARIABLE!>y<!> + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!> + w
         y = 7
-        x + y + v + uninitialized + w
+        x + y + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!> + w
     }
 }

compiler/testData/diagnostics/tests/secondaryConstructors/useOfPropertiesWithoutPrimary.fir.kt

@@ -1,8 +1,8 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 class A {
     val x: Int
-    val useUnitialized = x + // reported on each secondary constructor
-                         y +
+    val useUnitialized = <!UNINITIALIZED_VARIABLE!>x<!> + // reported on each secondary constructor
+                         <!UNINITIALIZED_VARIABLE!>y<!> +
                          v
     var y: Int
     val v = -1
@@ -19,7 +19,7 @@ class A {
         x = 1
         y = 2
 
-        x + y + v + uninitialized
+        x + y + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!>
 
         uninitialized = 3
 
@@ -27,16 +27,16 @@ class A {
     }
 
     constructor(a: Int): super() {
-        x + y + v + uninitialized
+        <!UNINITIALIZED_VARIABLE!>x<!> + y + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!>
         x = 4
         y = 5
 
-        x + y + v + uninitialized
+        x + y + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!>
     }
 
     //anonymous
     init {
-        y
+        <!UNINITIALIZED_VARIABLE!>y<!>
     }
 
     // anonymous