[FE 1.0] Don't miss NO_SET_METHOD checks

^KT-28109 Fixed

compiler/testData/diagnostics/tests/resolve/kt28109.fir.kt

@@ -0,0 +1,11 @@
+// WITH_STDLIB
+
+class Cell {
+    operator fun get(s: Int) = 1
+}
+
+fun box(): String {
+    val c = Cell()
+    (<!UNRESOLVED_REFERENCE!>c[0]<!>)++
+    return "OK"
+}

compiler/testData/diagnostics/tests/resolve/kt28109.kt

@@ -0,0 +1,11 @@
+// WITH_STDLIB
+
+class Cell {
+    operator fun get(s: Int) = 1
+}
+
+fun box(): String {
+    val c = Cell()
+    (c<!NO_SET_METHOD!>[0]<!>)++
+    return "OK"
+}

compiler/testData/diagnostics/tests/resolve/kt28109.txt

@@ -0,0 +1,11 @@
+package
+
+public fun box(): kotlin.String
+
+public final class Cell {
+    public constructor Cell()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public final operator fun get(/*0*/ s: kotlin.Int): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}