IrField is 'final' if corresponding property is 'val'

compiler/testData/ir/irText/classes/classMembers.txt

@@ -23,7 +23,7 @@ FILE fqName:<root> fileName:/classMembers.kt
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
               receiver: GET_VAR 'this@C: C' type=C origin=null
     PROPERTY name:z type:kotlin.Int visibility:public modality:FINAL flags:var
-      FIELD PROPERTY_BACKING_FIELD name:z type:kotlin.Int visibility:public flags:final
+      FIELD PROPERTY_BACKING_FIELD name:z type:kotlin.Int visibility:public flags:
         EXPRESSION_BODY
           GET_VAR 'value-parameter z: Int = ...' type=kotlin.Int origin=INITIALIZE_PROPERTY_FROM_PARAMETER
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-z> visibility:public modality:FINAL <> ($this:C) returnType:Int flags:
@@ -177,4 +177,3 @@ FILE fqName:<root> fileName:/classMembers.kt
       overridden:
         FUN IR_EXTERNAL_DECLARATION_STUB name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:String flags:
       $this: VALUE_PARAMETER name:<this> type:kotlin.Any flags:
-

compiler/testData/ir/irText/classes/delegatedImplementation.txt

@@ -119,7 +119,7 @@ FILE fqName:<root> fileName:/delegatedImplementation.kt
                 DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
                 INSTANCE_INITIALIZER_CALL classDescriptor='<no name provided>'
             PROPERTY name:x type:kotlin.String visibility:public modality:OPEN flags:val
-              FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.String visibility:public flags:
+              FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.String visibility:public flags:final
                 EXPRESSION_BODY
                   GET_VAR 'value-parameter x0: String' type=kotlin.String origin=null
               FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:OPEN <> ($this:otherImpl.<no name provided>) returnType:String flags:

compiler/testData/ir/irText/classes/initVar.txt

@@ -9,7 +9,7 @@ FILE fqName:<root> fileName:/initVar.kt
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='TestInitVarFromParameter'
     PROPERTY name:x type:kotlin.Int visibility:public modality:FINAL flags:var
-      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:final
+      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:
         EXPRESSION_BODY
           GET_VAR 'value-parameter x: Int' type=kotlin.Int origin=INITIALIZE_PROPERTY_FROM_PARAMETER
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:TestInitVarFromParameter) returnType:Int flags:
@@ -47,7 +47,7 @@ FILE fqName:<root> fileName:/initVar.kt
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='TestInitVarInClass'
     PROPERTY name:x type:kotlin.Int visibility:public modality:FINAL flags:var
-      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:final
+      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:
         EXPRESSION_BODY
           CONST Int type=kotlin.Int value=0
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:TestInitVarInClass) returnType:Int flags:
@@ -85,7 +85,7 @@ FILE fqName:<root> fileName:/initVar.kt
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='TestInitVarInInitBlock'
     PROPERTY name:x type:kotlin.Int visibility:public modality:FINAL flags:var
-      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:final
+      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:TestInitVarInInitBlock) returnType:Int flags:
         $this: VALUE_PARAMETER name:<this> type:TestInitVarInInitBlock flags:
         BLOCK_BODY
@@ -126,7 +126,7 @@ FILE fqName:<root> fileName:/initVar.kt
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='TestInitVarWithCustomSetter'
     PROPERTY name:x type:kotlin.Int visibility:public modality:FINAL flags:var
-      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:final
+      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:
         EXPRESSION_BODY
           CONST Int type=kotlin.Int value=0
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:TestInitVarWithCustomSetter) returnType:Int flags:
@@ -160,7 +160,7 @@ FILE fqName:<root> fileName:/initVar.kt
     superClasses:
       CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:Any modality:OPEN visibility:public flags:
     PROPERTY name:x type:kotlin.Int visibility:public modality:FINAL flags:var
-      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:final
+      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:TestInitVarWithCustomSetterWithExplicitCtor) returnType:Int flags:
         $this: VALUE_PARAMETER name:<this> type:TestInitVarWithCustomSetterWithExplicitCtor flags:
         BLOCK_BODY
@@ -201,7 +201,7 @@ FILE fqName:<root> fileName:/initVar.kt
     superClasses:
       CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:Any modality:OPEN visibility:public flags:
     PROPERTY name:x type:kotlin.Int visibility:public modality:FINAL flags:var
-      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:final
+      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:TestInitVarWithCustomSetterInCtor) returnType:Int flags:
         $this: VALUE_PARAMETER name:<this> type:TestInitVarWithCustomSetterInCtor flags:
         BLOCK_BODY

compiler/testData/ir/irText/classes/superCalls.txt

@@ -11,7 +11,7 @@ FILE fqName:<root> fileName:/superCalls.kt
       $this: VALUE_PARAMETER name:<this> type:Base flags:
       BLOCK_BODY
     PROPERTY name:bar type:kotlin.String visibility:public modality:OPEN flags:val
-      FIELD PROPERTY_BACKING_FIELD name:bar type:kotlin.String visibility:public flags:
+      FIELD PROPERTY_BACKING_FIELD name:bar type:kotlin.String visibility:public flags:final
         EXPRESSION_BODY
           CONST String type=kotlin.String value=
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-bar> visibility:public modality:OPEN <> ($this:Base) returnType:String flags: