Create from Usage: Implement "Create function" on callable references

#KT-10283 Fixed

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/extensionNoReceiverInCallableRef.kt

@@ -0,0 +1,8 @@
+// "Create function 'foo'" "true"
+fun <T, U> T.map(f: T.() -> U) = f()
+
+fun consume(s: String) {}
+
+fun test() {
+    consume(1.map(::<caret>foo))
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/extensionNoReceiverInCallableRef.kt.after

@@ -0,0 +1,11 @@
+// "Create function 'foo'" "true"
+fun <T, U> T.map(f: T.() -> U) = f()
+
+fun consume(s: String) {}
+
+fun test() {
+    fun foo(i: Int): String {
+        <selection>throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
+    }
+    consume(1.map(::foo))
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/extensionWithReceiverInCallableRef.kt

@@ -0,0 +1,8 @@
+// "Create extension function 'foo'" "true"
+fun <T, U> T.map(f: T.() -> U) = f()
+
+fun consume(s: String) {}
+
+fun test() {
+    consume(1.map(Int::<caret>foo))
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/extensionWithReceiverInCallableRef.kt.after

@@ -0,0 +1,12 @@
+// "Create extension function 'foo'" "true"
+fun <T, U> T.map(f: T.() -> U) = f()
+
+fun consume(s: String) {}
+
+fun test() {
+    consume(1.map(Int::foo))
+}
+
+fun Int.foo(): String {
+    <selection>throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/noExpectedReturnType.kt

@@ -0,0 +1,6 @@
+// "Create function 'foo'" "true"
+fun <T, U> T.map(f: (T) -> U) = f(this)
+
+fun test() {
+    1.map(::<caret>foo)
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/noExpectedReturnType.kt.after

@@ -0,0 +1,9 @@
+// "Create function 'foo'" "true"
+fun <T, U> T.map(f: (T) -> U) = f(this)
+
+fun test() {
+    fun foo(i: Int): Any {
+        <selection>throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
+    }
+    1.map(::foo)
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/noFunctionalType.kt

@@ -0,0 +1,11 @@
+// "Create function 'foo'" "false"
+// ACTION: Convert to expression body
+// ACTION: Rename reference
+// ERROR: Unresolved reference: foo
+fun bar(n: Int) = "$n"
+
+fun consume(s: String) {}
+
+fun test() {
+    consume(bar(::<caret>foo))
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/withExpectedReturnType.kt

@@ -0,0 +1,8 @@
+// "Create function 'foo'" "true"
+fun <T, U> T.map(f: (T) -> U) = f(this)
+
+fun consume(s: String) {}
+
+fun test() {
+    consume(1.map(::<caret>foo))
+}

idea/testData/quickfix/createFromUsage/createFunction/callableReferences/withExpectedReturnType.kt.after

@@ -0,0 +1,11 @@
+// "Create function 'foo'" "true"
+fun <T, U> T.map(f: (T) -> U) = f(this)
+
+fun consume(s: String) {}
+
+fun test() {
+    fun foo(i: Int): String {
+        <selection>throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
+    }
+    consume(1.map(::foo))
+}