Exception fix: diagnose an error for a generic type which is a subtype of itself, a set of tests #EA-64453 Fixed

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBound.kt

@@ -0,0 +1,3 @@
+// !DIAGNOSTICS: -MUST_BE_INITIALIZED
+fun <T: <!CYCLIC_GENERIC_UPPER_BOUND!>T?<!>> foo() {}
+val <T: <!CYCLIC_GENERIC_UPPER_BOUND!>T?<!>> prop

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBound.txt

@@ -0,0 +1,4 @@
+package
+
+internal val </*0*/ T : [ERROR : Cyclic upper bound: T?]> prop: [ERROR : No type, no body]
+internal fun </*0*/ T : [ERROR : Cyclic upper bound: T?]> foo(): kotlin.Unit

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBoundLocal.kt

@@ -0,0 +1,4 @@
+fun bar() {
+    fun <T: <!CYCLIC_GENERIC_UPPER_BOUND!>T?<!>> foo() {}
+    foo()
+}

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBoundLocal.txt

@@ -0,0 +1,3 @@
+package
+
+internal fun bar(): kotlin.Unit

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBoundMember.kt

@@ -0,0 +1,5 @@
+// !DIAGNOSTICS: -MUST_BE_INITIALIZED_OR_BE_ABSTRACT
+class My {
+    fun <T: <!CYCLIC_GENERIC_UPPER_BOUND!>T?<!>> foo() {}
+    val <T: <!CYCLIC_GENERIC_UPPER_BOUND!>T?<!>> prop: T
+}

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBoundMember.txt

@@ -0,0 +1,10 @@
+package
+
+internal final class My {
+    public constructor My()
+    internal final val </*0*/ T : [ERROR : Cyclic upper bound: T?]> prop: [ERROR : ?]
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    internal final fun </*0*/ T : [ERROR : Cyclic upper bound: T?]> foo(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBoundNotNull.kt

@@ -0,0 +1,3 @@
+// !DIAGNOSTICS: -MUST_BE_INITIALIZED
+fun <T: <!CYCLIC_GENERIC_UPPER_BOUND!>T<!>> foo() {}
+val <T: <!CYCLIC_GENERIC_UPPER_BOUND!>T?<!>> prop: T

compiler/testData/diagnostics/tests/regressions/itselfAsUpperBoundNotNull.txt

@@ -0,0 +1,4 @@
+package
+
+internal val </*0*/ T : [ERROR : Cyclic upper bound: T?]> prop: [ERROR : ?]
+internal fun </*0*/ T : [ERROR : Cyclic upper bound: T]> foo(): kotlin.Unit