Replace get() and set() to getValue() and setValue() (property delegates)

compiler/testData/diagnostics/tests/inference/regressions/kt3496.kt

@@ -5,5 +5,5 @@ class B<T> {
     fun <S> x (y: B<Iterable<S>>) {
         val z: S = y[""] // does not work with [], but works with .get()
     }
-    operator fun <S> get(s : String): S = throw Exception()
+    operator fun <S> get(<!UNUSED_PARAMETER!>s<!> : String): S = throw Exception()
 }

compiler/testData/diagnostics/tests/inference/regressions/kt3496_2.kt

@@ -8,4 +8,4 @@ class F<T> {
         val z: ArrayList<T> = y["", w]
     }
 }
-operator fun <V, T> Any.get(s: String, w: ArrayList<V>): ArrayList<T> = throw Exception()
+operator fun <V, T> Any.get(<!UNUSED_PARAMETER!>s<!>: String, <!UNUSED_PARAMETER!>w<!>: ArrayList<V>): ArrayList<T> = throw Exception()

compiler/testData/diagnostics/tests/inference/substitutions/delegationAndInference.kt

@@ -5,8 +5,8 @@ class A(val map: MutableMap<String, CharSequence>) {
     var a: String by map.withDefault1 { "foo" }
 }
 
-fun <G> MutableMap<in String, in G>.get(thisRef: Any?, property: PropertyMetadata): G = throw Exception()
+fun <G> MutableMap<in String, in G>.getValue(thisRef: Any?, property: PropertyMetadata): G = throw Exception()
 
-fun <S> MutableMap<in String, in S>.set(thisRef: Any?, property: PropertyMetadata, value: S) {}
+fun <S> MutableMap<in String, in S>.setValue(thisRef: Any?, property: PropertyMetadata, value: S) {}
 
 fun <K, V> MutableMap<K, V>.withDefault1(default: (key: K) -> V): MutableMap<K, V> = this

compiler/testData/diagnostics/tests/inference/substitutions/delegationAndInference.txt

@@ -1,7 +1,7 @@
 package
 
-public fun </*0*/ G> kotlin.MutableMap<in kotlin.String, in G>.get(/*0*/ thisRef: kotlin.Any?, /*1*/ property: kotlin.PropertyMetadata): G
-public fun </*0*/ S> kotlin.MutableMap<in kotlin.String, in S>.set(/*0*/ thisRef: kotlin.Any?, /*1*/ property: kotlin.PropertyMetadata, /*2*/ value: S): kotlin.Unit
+public fun </*0*/ G> kotlin.MutableMap<in kotlin.String, in G>.getValue(/*0*/ thisRef: kotlin.Any?, /*1*/ property: kotlin.PropertyMetadata): G
+public fun </*0*/ S> kotlin.MutableMap<in kotlin.String, in S>.setValue(/*0*/ thisRef: kotlin.Any?, /*1*/ property: kotlin.PropertyMetadata, /*2*/ value: S): kotlin.Unit
 public fun </*0*/ K, /*1*/ V> kotlin.MutableMap<K, V>.withDefault1(/*0*/ default: (K) -> V): kotlin.MutableMap<K, V>
 
 public final class A {