KT-16535 'provideDelegate' convention is not supported in IR

Implement provideDelegate convention support.
NB delegate type now depends on 'provideDelegate' convention resolution.

compiler/testData/ir/irText/declarations/provideDelegate/topLevel.kt

@@ -0,0 +1,10 @@
+class Delegate(val value: String) {
+    operator fun getValue(thisRef: Any?, property: Any?) = value
+}
+
+class DelegateProvider(val value: String) {
+    operator fun provideDelegate(thisRef: Any?, property: Any?) = Delegate(value)
+}
+
+val testTopLevel by DelegateProvider("OK")
+