Function expressions can be now annotated with expression-targeted annotation #KT-9323 Fixed

compiler/testData/diagnostics/tests/annotations/options/functionExpression.kt

@@ -0,0 +1,11 @@
+@Target(AnnotationTarget.EXPRESSION)
+annotation class ExprAnn
+
+@Target(AnnotationTarget.FUNCTION)
+annotation class FunAnn
+
+fun foo(): Int {
+    val x = @ExprAnn fun() = 1
+    val y = @FunAnn fun() = 2
+    return x() + y()    
+}

compiler/testData/diagnostics/tests/annotations/options/functionExpression.txt

@@ -0,0 +1,17 @@
+package
+
+public fun foo(): kotlin.Int
+
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.EXPRESSION}) @kotlin.annotation.annotation() public final class ExprAnn : kotlin.Annotation {
+    public constructor ExprAnn()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.FUNCTION}) @kotlin.annotation.annotation() public final class FunAnn : kotlin.Annotation {
+    public constructor FunAnn()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}