Analysis API: fix some compilation errors in reference resolve testdata

analysis/analysis-api/testData/referenceResolve/forLoopIn/inSource/allExtensions.kt

@@ -3,9 +3,10 @@ fun test(f: Foo) {
 }
 
 interface Foo
-fun Foo.iterator(): Iterator
+fun Foo.iterator(): Iterator = TODO()
 
 interface Iterator
 
-fun Iterator.next(): Any
-fun Iterator.hasNext(): Boolean
+fun Iterator.next(): Any= TODO()
+fun Iterator.hasNext(): Boolean = TODO()
+

analysis/analysis-api/testData/referenceResolve/forLoopIn/inSource/allMembers.kt

@@ -3,12 +3,12 @@ fun test(f: Foo) {
 }
 
 interface Foo {
-  fun iterator(): Iterator
+    operator fun iterator(): Iterator
 }
 
 interface Iterator {
-  fun next(): Any
-  fun hasNext(): Boolean
+  operator fun next(): Any
+  operator fun hasNext(): Boolean
 }
 
 // MULTIRESOLVE

analysis/analysis-api/testData/referenceResolve/forLoopIn/inSource/allMembers.txt

@@ -1,4 +1,4 @@
 Resolved to:
-0: (in Foo) fun iterator(): Iterator
-1: (in Iterator) fun hasNext(): kotlin.Boolean
-2: (in Iterator) fun next(): kotlin.Any
+0: (in Foo) operator fun iterator(): Iterator
+1: (in Iterator) operator fun hasNext(): kotlin.Boolean
+2: (in Iterator) operator fun next(): kotlin.Any

analysis/analysis-api/testData/referenceResolve/forLoopIn/inSource/nextMissing.kt

@@ -3,11 +3,11 @@ fun test(f: Foo) {
 }
 
 interface Foo {
-  fun iterator(): Iterator
+    operator fun iterator(): Iterator
 }
 
 interface Iterator {
-  fun hasNext(): Boolean
+    operator fun hasNext(): Boolean
 }
 
 // MULTIRESOLVE

analysis/analysis-api/testData/referenceResolve/forLoopIn/inSource/nextMissing.txt

@@ -1,3 +1,3 @@
 Resolved to:
-0: (in Foo) fun iterator(): Iterator
-1: (in Iterator) fun hasNext(): kotlin.Boolean
+0: (in Foo) operator fun iterator(): Iterator
+1: (in Iterator) operator fun hasNext(): kotlin.Boolean