Create From Usage: Move "Create function"-related tests to separate directory

idea/testData/quickfix/createFromUsage/createFunction/iterator/afterCreateIteratorFromUsage1.kt

@@ -0,0 +1,9 @@
+// "Create function 'iterator' from usage" "true"
+class Foo<T> {
+    fun iterator(): Iterator<T> {
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+}
+fun foo() {
+    for (i: Int in Foo<Int>()) { }
+}

idea/testData/quickfix/createFromUsage/createFunction/iterator/afterCreateIteratorFromUsage2.kt

@@ -0,0 +1,12 @@
+// "Create function 'iterator' from usage" "true"
+class Foo<T> {
+    fun iterator(): Iterator<String> {
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+}
+fun foo() {
+    for (i in Foo<Int>()) {
+        bar(i)
+    }
+}
+fun bar(i: String) { }

idea/testData/quickfix/createFromUsage/createFunction/iterator/afterCreateIteratorFromUsage3.kt

@@ -0,0 +1,22 @@
+// "Create function 'next' from usage" "true"
+class FooIterator<T> {
+    fun hasNext(): Boolean { return false }
+
+    fun next(): Any {
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+}
+class Foo<T> {
+    fun iterator(): FooIterator<String> {
+        throw UnsupportedOperationException("not implemented")
+    }
+}
+fun Any.component1(): Int {
+    return 0
+}
+fun Any.component2(): Int {
+    return 0
+}
+fun foo() {
+    for ((i: Int, j: Int) in Foo<Int>()) { }
+}

idea/testData/quickfix/createFromUsage/createFunction/iterator/beforeCreateIteratorFromUsage1.kt

@@ -0,0 +1,5 @@
+// "Create function 'iterator' from usage" "true"
+class Foo<T>
+fun foo() {
+    for (i: Int in Foo<caret><Int>()) { }
+}

idea/testData/quickfix/createFromUsage/createFunction/iterator/beforeCreateIteratorFromUsage2.kt

@@ -0,0 +1,8 @@
+// "Create function 'iterator' from usage" "true"
+class Foo<T>
+fun foo() {
+    for (i in Foo<caret><Int>()) {
+        bar(i)
+    }
+}
+fun bar(i: String) { }

idea/testData/quickfix/createFromUsage/createFunction/iterator/beforeCreateIteratorFromUsage3.kt

@@ -0,0 +1,18 @@
+// "Create function 'next' from usage" "true"
+class FooIterator<T> {
+    fun hasNext(): Boolean { return false }
+}
+class Foo<T> {
+    fun iterator(): FooIterator<String> {
+        throw UnsupportedOperationException("not implemented")
+    }
+}
+fun Any.component1(): Int {
+    return 0
+}
+fun Any.component2(): Int {
+    return 0
+}
+fun foo() {
+    for ((i: Int, j: Int) in Foo<caret><Int>()) { }
+}