Minor. removed functions which declared in Standard.kt from diagnostic testdata.

Removed declaration for functions: TODO, run, with, apply, let.

compiler/testData/diagnostics/tests/generics/nullability/useAsReceiver.kt

@@ -5,8 +5,6 @@ fun CharSequence?.bar2() {}
 
 fun <T : CharSequence> T.bar3() {}
 
-fun <T, R> T.let(f: (T) -> R): R = f(this)
-
 fun <T : String?> foo(x: T) {
     x<!UNSAFE_CALL!>.<!>length
     x?.length

compiler/testData/diagnostics/tests/generics/nullability/useAsReceiver.txt

@@ -4,4 +4,3 @@ public fun </*0*/ T : kotlin.String?> foo(/*0*/ x: T): kotlin.Unit
 public fun </*0*/ T : kotlin.CharSequence?> T.bar1(): kotlin.Unit
 public fun kotlin.CharSequence?.bar2(): kotlin.Unit
 public fun </*0*/ T : kotlin.CharSequence> T.bar3(): kotlin.Unit
-public fun </*0*/ T, /*1*/ R> T.let(/*0*/ f: (T) -> R): R

compiler/testData/diagnostics/tests/generics/projectionsScope/extensionReceiverTypeMismatch.kt

@@ -4,8 +4,6 @@ class A<T> {
 }
 class Out<out E>
 
-public inline fun <T, R> with(receiver: T, f: T.() -> R): R = receiver.f()
-
 fun test(x: A<out CharSequence>, y: Out<CharSequence>) {
     with(x) {
         // TODO: this diagnostic could be replaced with TYPE_MISMATCH_DUE_TO_TYPE_PROJECTION

compiler/testData/diagnostics/tests/generics/projectionsScope/extensionReceiverTypeMismatch.txt

@@ -1,7 +1,6 @@
 package
 
 public fun test(/*0*/ x: A<out kotlin.CharSequence>, /*1*/ y: Out<kotlin.CharSequence>): kotlin.Unit
-public inline fun </*0*/ T, /*1*/ R> with(/*0*/ receiver: T, /*1*/ f: T.() -> R): R
 
 public final class A</*0*/ T> {
     public constructor A</*0*/ T>()