[FIR] Add lValueTypeRef to FirVariableAssignment, fix tests with ASSIGNMENT_TYPE_MISMATCH

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

@@ -2,7 +2,7 @@ var x : Int = 1 + x
    get() : Int = 1
    set(value : <!WRONG_SETTER_PARAMETER_TYPE!>Long<!>) {
       field = value.toInt()
-      field = 1.toLong()
+      field = <!ASSIGNMENT_TYPE_MISMATCH!>1.toLong()<!>
     }
 
  val xx : Int = <!PROPERTY_INITIALIZER_NO_BACKING_FIELD!>1 + x<!>
@@ -19,4 +19,4 @@ class Test() {
         set(x) {a = x; field = x}
 
    public val i = 1
-}
+}

compiler/testData/diagnostics/tests/platformTypes/nullabilityWarnings/dataFlowInfo.fir.kt

@@ -16,17 +16,17 @@ public class J {
 fun test() {
     val n = J.staticN
     foo(<!ARGUMENT_TYPE_MISMATCH!>n<!>)
-    J.staticNN = n
+    J.staticNN = <!ASSIGNMENT_TYPE_MISMATCH!>n<!>
     if (n != null) {
         foo(n)
         J.staticNN = n
     }
 
     val x: J? = null
-    J.staticNN = x
+    J.staticNN = <!ASSIGNMENT_TYPE_MISMATCH!>x<!>
     if (x != null) {
         J.staticNN = x
     }
 }
 
-fun foo(j: J) {}
+fun foo(j: J) {}

compiler/testData/diagnostics/tests/platformTypes/nullabilityWarnings/passToJava.fir.kt

@@ -34,8 +34,8 @@ fun test(n: J?, nn: J) {
     // platform type with no annotation
     val platformJ = J.staticJ
 
-    J.staticNN = n
-    J.staticNN = platformN
+    J.staticNN = <!ASSIGNMENT_TYPE_MISMATCH!>n<!>
+    J.staticNN = <!ASSIGNMENT_TYPE_MISMATCH!>platformN<!>
     J.staticNN = nn
     J.staticNN = platformNN
     J.staticNN = platformJ
@@ -58,8 +58,8 @@ fun test(n: J?, nn: J) {
     J.staticSet(<!ARGUMENT_TYPE_MISMATCH!>platformN<!>, platformN, platformN)
     J.staticSet(platformJ, platformJ, platformJ)
 
-    J().nn = n
-    J().nn = platformN
+    J().nn = <!ASSIGNMENT_TYPE_MISMATCH!>n<!>
+    J().nn = <!ASSIGNMENT_TYPE_MISMATCH!>platformN<!>
     J().nn = nn
     J().nn = platformNN
     J().nn = platformJ
@@ -87,4 +87,4 @@ fun test(n: J?, nn: J) {
     J(<!ARGUMENT_TYPE_MISMATCH!>n<!>, n, n)
     J(<!ARGUMENT_TYPE_MISMATCH!>platformN<!>, platformN, platformN)
     J(platformJ, platformJ, platformJ)
-}
+}

compiler/testData/diagnostics/tests/platformTypes/rawTypes/arrays.fir.kt

@@ -28,7 +28,7 @@ fun main() {
     val raw = Test.rawAField
 
     raw.charSequences = arrayOf<String>()
-    raw.charSequences = arrayOf<Double>()
+    raw.charSequences = <!ASSIGNMENT_TYPE_MISMATCH!>arrayOf<Double>()<!>
 
     raw.maps = arrayOf<Map<Int, Int>>()
     raw.maps = arrayOf<MutableMap<Int, Int>>()

compiler/testData/diagnostics/tests/platformTypes/rawTypes/nonTrivialErasure.fir.kt

@@ -25,5 +25,5 @@ fun main() {
     Test.rawAField.second = rawA.first.second
 
     rawA.listOfDoubles = strList
-    rawA.listOfDoubles = "" // first should be List
+    rawA.listOfDoubles = <!ASSIGNMENT_TYPE_MISMATCH!>""<!> // first should be List
 }

compiler/testData/diagnostics/tests/regressions/kt251.fir.kt

@@ -3,7 +3,7 @@ class A() {
     var x: Int = 0
         get() = "s"
         set(value: <!WRONG_SETTER_PARAMETER_TYPE!>String<!>) {
-            field = value
+            field = <!ASSIGNMENT_TYPE_MISMATCH!>value<!>
         }
     val y: Int
         get(): <!WRONG_GETTER_RETURN_TYPE("Getter return type must be equal to the type of the property, i.e. 'kotlin/Int'")!>String<!> = "s"