FIR: Allow a field override another field with the same name

compiler/testData/diagnostics/tests/j+k/fieldOverridesField.fir.kt

@@ -1,17 +0,0 @@
-// FILE: A.java
-
-public class A {
-    public int size = 1;
-}
-
-// FILE: B.java
-
-public class B implements A {
-    public int size = 1;
-}
-
-// FILE: main.kt
-
-fun foo() {
-    B().<!AMBIGUITY!>size<!>
-}

compiler/testData/diagnostics/tests/j+k/fieldOverridesField.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // FILE: A.java
 
 public class A {

compiler/testData/diagnostics/tests/j+k/fieldOverridesFieldOfDifferentType.fir.kt

@@ -1,19 +0,0 @@
-// !CHECK_TYPE
-
-// FILE: A.java
-
-public class A {
-    public int size = 1;
-}
-
-// FILE: B.java
-
-public class B extends A {
-    public String size = 1;
-}
-
-// FILE: main.kt
-
-fun foo() {
-    B().<!AMBIGUITY!>size<!>.<!INAPPLICABLE_CANDIDATE!>checkType<!> { <!UNRESOLVED_REFERENCE!>_<!><String>() }
-}

compiler/testData/diagnostics/tests/j+k/fieldOverridesFieldOfDifferentType.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !CHECK_TYPE
 
 // FILE: A.java