FIR: Support adding expect type to calls in foo() as R position

See https://kotlinlang.org/docs/whatsnew12.html#support-for-foo-as-a-shorthand-for-this-foo

compiler/testData/codegen/box/reified/expectedTypeFromCast.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 

compiler/testData/diagnostics/tests/delegatedProperty/provideDelegate/commonCaseForInference.fir.kt

@@ -8,6 +8,6 @@ object CommonCase {
     operator fun <D, E, R> Fas<D, E, R>.provideDelegate(host: D, p: Any?): Fas<D, E, R> = TODO()
     operator fun <D, E, R> Fas<D, E, R>.getValue(receiver: E, p: Any?): R = TODO()
 
-    val Long.test1: String by <!TYPE_MISMATCH!>delegate()<!> // common test, not working because of Inference1
+    val Long.test1: String by <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>delegate<!>() // common test, not working because of Inference1
     val Long.test2: String by delegate<CommonCase, Long, String>() // should work
 }

compiler/testData/diagnostics/tests/inference/expectedTypeDoubleReceiver.fir.kt

@@ -13,6 +13,6 @@ val asA = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>().<!UNRESOLVED_RE
 val receiverParenthesized = (<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>()).<!UNRESOLVED_REFERENCE!>fooA<!>() as A
 val no2A = A().<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>fooA<!>().<!UNRESOLVED_REFERENCE!>fooA<!>() as A
 
-val correct1 = A().<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>fooA<!>() as A
-val correct2 = foo<A>().<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>fooA<!>() as A
-val correct3 = A().fooA<A>().<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>fooA<!>() as A
+val correct1 = A().fooA() as A
+val correct2 = foo<A>().fooA() as A
+val correct3 = A().fooA<A>().fooA() as A

compiler/testData/diagnostics/tests/inference/expectedTypeFromCast.fir.kt

@@ -4,17 +4,17 @@ fun <T> foo(): T = TODO()
 
 fun <V> id(value: V) = value
 
-val asString = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as String
+val asString = foo() as String
 
 val viaId = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>id<!>(foo()) as String
 
-val insideId = id(<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as String)
+val insideId = id(foo() as String)
 
-val asList = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as List<String>
+val asList = foo() as List<String>
 
-val asStarList = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as List<*>
+val asStarList = foo() as List<*>
 
-val safeAs = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as? String
+val safeAs = foo() as? String
 
 val fromIs = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() is String
 val fromNoIs = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() !is String

compiler/testData/diagnostics/tests/inference/expectedTypeFromCastComplexExpression.kt

@@ -11,6 +11,6 @@ class A {
     }
 }
 
-val x = A().<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as String
-val y = A.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo2<!>() as String
-val z = pp.A.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo2<!>() as String
+val x = A().foo() as String
+val y = A.foo2() as String
+val z = pp.A.foo2() as String

compiler/testData/diagnostics/tests/inference/expectedTypeFromCastParenthesized.fir.kt

@@ -8,15 +8,15 @@ fun <T> foo(): T = TODO()
 
 fun <V> id(value: V) = value
 
-val par1 = (<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>()) as String
-val par2 = ((<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>())) as String
+val par1 = (foo()) as String
+val par2 = ((foo())) as String
 
-val par3 = (dd@ (<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>())) as String
+val par3 = (dd@ (foo())) as String
 
-val par4 = ( @bar() (<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>())) as String
+val par4 = ( @bar() (foo())) as String
 
 object X {
     fun <T> foo(): T = TODO()
 }
 
-val par5 = ( @bar() X.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>()) as String
+val par5 = ( @bar() X.foo()) as String

compiler/testData/diagnostics/tests/inference/expectedTypeWithGenerics.fir.kt

@@ -5,13 +5,13 @@ class X<S> {
 }
 
 fun test(x: X<Number>) {
-    val y = x.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as Int
+    val y = x.foo() as Int
 }
 
 fun <S, D: S> g() {
     fun <T : S> foo(): T = TODO()
 
-    val y = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as Int
+    val y = <!NEW_INFERENCE_ERROR!>foo()<!> as Int
 
-    val y2 = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as D
+    val y2 = foo() as D
 }

compiler/testData/diagnostics/tests/inference/expectedTypeWithGenericsSafeCalls.kt

@@ -0,0 +1,11 @@
+// FIR_IDENTICAL
+// SKIP_TXT
+// !LANGUAGE: +ExpectedTypeFromCast
+
+class X {
+    fun <T> foo(): T = TODO()
+}
+
+fun test(x: X?) {
+    val y = x?.foo() as Int
+}

compiler/testData/diagnostics/tests/inference/findViewById.fir.kt

@@ -0,0 +1,58 @@
+// !LANGUAGE: +ExpectedTypeFromCast
+// !DIAGNOSTICS: -UNUSED_VARIABLE -DEBUG_INFO_LEAKING_THIS
+
+// FILE: a/View.java
+package a;
+
+public class View {
+
+}
+
+// FILE: a/Test.java
+package a;
+
+public class Test {
+    public <T extends View> T findViewById(int id);
+}
+
+// FILE: 1.kt
+package a
+
+
+class X : View()
+
+class Y<T> : View()
+
+val xExplicit: X = Test().findViewById(0)
+val xCast = Test().findViewById(0) as X
+
+val xCastExplicitType = Test().findViewById<X>(0) as X
+val xSafeCastExplicitType = Test().findViewById<X>(0) as? X
+
+val yExplicit: Y<String> = Test().findViewById(0)
+val yCast = Test().findViewById(0) as Y<String>
+
+
+class TestChild : Test() {
+    val xExplicit: X = findViewById(0)
+    val xCast = findViewById(0) as X
+
+    val yExplicit: Y<String> = findViewById(0)
+    val yCast = findViewById(0) as Y<String>
+}
+
+fun test(t: Test) {
+    val xExplicit: X = t.findViewById(0)
+    val xCast = t.findViewById(0) as X
+
+    val yExplicit: Y<String> = t.findViewById(0)
+    val yCast = t.findViewById(0) as Y<String>
+}
+
+fun test2(t: Test?) {
+    val xSafeCallSafeCast = t?.findViewById(0) <!USELESS_CAST!>as? X<!>
+    val xSafeCallSafeCastExplicitType = t?.findViewById<X>(0) <!USELESS_CAST!>as? X<!>
+
+    val xSafeCallCast = t?.findViewById(0) as X
+    val xSafeCallCastExplicitType = t<!UNNECESSARY_SAFE_CALL!>?.<!>findViewById<X>(0) as X
+}

compiler/testData/diagnostics/tests/inference/findViewById.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // !LANGUAGE: +ExpectedTypeFromCast
 // !DIAGNOSTICS: -UNUSED_VARIABLE -DEBUG_INFO_LEAKING_THIS
 
@@ -25,35 +24,35 @@ class X : View()
 class Y<T> : View()
 
 val xExplicit: X = Test().findViewById(0)
-val xCast = Test().<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as X
+val xCast = Test().findViewById(0) as X
 
 val xCastExplicitType = Test().findViewById<X>(0) as X
 val xSafeCastExplicitType = Test().findViewById<X>(0) <!USELESS_CAST!>as? X<!>
 
 val yExplicit: Y<String> = Test().findViewById(0)
-val yCast = Test().<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as Y<String>
+val yCast = Test().findViewById(0) as Y<String>
 
 
 class TestChild : Test() {
     val xExplicit: X = findViewById(0)
-    val xCast = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as X
+    val xCast = findViewById(0) as X
 
     val yExplicit: Y<String> = findViewById(0)
-    val yCast = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as Y<String>
+    val yCast = findViewById(0) as Y<String>
 }
 
 fun test(t: Test) {
     val xExplicit: X = t.findViewById(0)
-    val xCast = t.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as X
+    val xCast = t.findViewById(0) as X
 
     val yExplicit: Y<String> = t.findViewById(0)
-    val yCast = t.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as Y<String>
+    val yCast = t.findViewById(0) as Y<String>
 }
 
 fun test2(t: Test?) {
-    val xSafeCallSafeCast = t?.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as? X
+    val xSafeCallSafeCast = t?.findViewById(0) as? X
     val xSafeCallSafeCastExplicitType = t?.findViewById<X>(0) <!USELESS_CAST!>as? X<!>
 
-    val xSafeCallCast = t?.<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>findViewById<!>(0) as X
+    val xSafeCallCast = t?.findViewById(0) as X
     val xSafeCallCastExplicitType = t<!UNNECESSARY_SAFE_CALL!>?.<!>findViewById<X>(0) as X
 }

compiler/testData/diagnostics/tests/inference/kt30405.kt

@@ -8,9 +8,9 @@ inline fun <reified T> foo(): T {
 }
 
 fun test() {
-    val fooCall = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as String // T in foo should be inferred to String
+    val fooCall = foo() as String // T in foo should be inferred to String
     fooCall checkType { _<String>() }
 
-    val safeFooCall = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!>() as? String
+    val safeFooCall = foo() as? String
     safeFooCall checkType { _<String?>() }
 }