KT-9498 extension: now type can be inferred for getter with expression body

compiler/testData/diagnostics/tests/declarationChecks/ambiguousObjectExpressionType.kt

@@ -24,6 +24,9 @@ class Foo {
 
     <!AMBIGUOUS_ANONYMOUS_TYPE_INFERRED!>public val <!EXPOSED_PROPERTY_TYPE!>publicProperty<!><!> = object : MyClass(), MyTrait {}
 
+    <!PROPERTY_WITH_NO_TYPE_NO_INITIALIZER!>val propertyWithGetter<!>
+        <!AMBIGUOUS_ANONYMOUS_TYPE_INFERRED!>get()<!> = object: MyClass(), MyTrait {}
+
 
     private fun privateFunction() = object : MyClass(), MyTrait {}
 

compiler/testData/diagnostics/tests/declarationChecks/ambiguousObjectExpressionType.txt

@@ -16,6 +16,7 @@ public final class Foo {
     internal final val internal2Property: Foo.internal2Property.<no name provided>
     public final val internalProperty: Foo.internalProperty.<no name provided>
     private final val privateProperty: Foo.privateProperty.<no name provided>
+    public final val propertyWithGetter: [ERROR : No type, no body]
     protected final val protectedProperty: Foo.protectedProperty.<no name provided>
     public final val publicProperty: Foo.publicProperty.<no name provided>
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean