IR: IrSimpleFunction.correspondingProperty: IrProperty?

Non-null for a property accessor, points to a corresponding property.

compiler/testData/ir/irText/expressions/genericPropertyCall.txt

@@ -1,6 +1,7 @@
 FILE fqName:<root> fileName:/genericPropertyCall.kt
   PROPERTY name:id type:T visibility:public modality:FINAL flags:val
     FUN name:<get-id> visibility:public modality:FINAL <T> ($receiver:T) returnType:T flags:
+      correspondingProperty: PROPERTY name:id type:T visibility:public modality:FINAL flags:val
       TYPE_PARAMETER name:T index:0 variance: upperBounds:[kotlin.Any?]
         superClassifiers:
           CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:Any modality:OPEN visibility:public flags:
@@ -15,6 +16,7 @@ FILE fqName:<root> fileName:/genericPropertyCall.kt
           <`0>: String
           $receiver: CONST String type=kotlin.String value=abc
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test> visibility:public modality:FINAL <> () returnType:String flags:
+      correspondingProperty: PROPERTY name:test type:kotlin.String visibility:public modality:FINAL flags:val
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='<get-test>(): String'
           GET_FIELD 'test: String' type=kotlin.String origin=null