Improve inference on generics for callable references

#KT-10711 Fixed
 #KT-12802 Fixed
 #KT-12964 Fixed
 #KT-15439 Fixed

Analyze callable references in `dependent` mode, then complete them with
respect to expected types

compiler/testData/diagnostics/tests/callableReference/generic/genericExtensionFunction.kt

@@ -0,0 +1,30 @@
+// !CHECK_TYPE
+// !DIAGNOSTICS: -UNUSED_PARAMETER, -UNUSED_VARIABLE
+
+class Wrapper
+
+fun <R, S> Wrapper.foo(x: R): S = TODO()
+fun Wrapper.fooIntString(x: Int): String = ""
+fun <T> Wrapper.fooReturnString(x: T): String = ""
+fun <T> Wrapper.fooTakeInt(x: Int): T = TODO()
+
+fun <T, R, S> bar(f: T.(R) -> S): Tripple<T, R, S> = TODO()
+fun <T, R, S> baz(x: T, y: R, z: S, f: T.(R) -> S): Tripple<T, R, S> = TODO()
+
+class Tripple<A, B, C>(val a: A, val b: B, val c: C)
+
+fun test1() {
+    val x: Wrapper.(String) -> Boolean = Wrapper::foo
+    bar<Wrapper, Double, Float>(Wrapper::foo).checkType { _<Tripple<Wrapper, Double, Float>>() }
+    bar(Wrapper::fooIntString).checkType { _<Tripple<Wrapper, Int, String>>() }
+}
+
+fun <T> test2() {
+    bar<Wrapper, Int, String>(Wrapper::fooReturnString).checkType { _<Tripple<Wrapper, Int, String>>() }
+    bar<Wrapper, T, String>(Wrapper::fooReturnString).checkType { _<Tripple<Wrapper, T, String>>() }
+    bar<Wrapper, T, T>(Wrapper::<!TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH!>fooReturnString<!>)
+    bar<Wrapper, Int, Int>(Wrapper::<!TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH!>fooReturnString<!>)
+
+    bar<Wrapper, Int, T>(Wrapper::fooTakeInt).checkType { _<Tripple<Wrapper, Int, T>>() }
+    bar<Wrapper, Int, String>(Wrapper::fooTakeInt).checkType { _<Tripple<Wrapper, Int, String>>() }
+}