[FIR] Forbid to use equality and unsigned comparison in const expression

#KT-62683

compiler/testData/diagnostics/tests/constantEvaluator/constant/identityCompare.fir.kt

@@ -0,0 +1,29 @@
+// WITH_STDLIB
+const val int = 456
+const val uint = 456U
+
+const val equal1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 === 2<!>
+const val equal2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>int === 2<!>
+const val equal3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 === int<!>
+const val equal4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u === int<!>
+
+const val equal5 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u === 2u<!>
+const val equal6 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>uint === 2u<!>
+const val equal7 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1 === uint<!>
+const val equal8 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u === uint<!>
+
+const val equal9 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>uint === int<!>
+const val equal10 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>int === uint<!>
+
+const val notEqual1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 !== 2<!>
+const val notEqual2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>int !== 2<!>
+const val notEqual3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 !== int<!>
+const val notEqual4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u !== int<!>
+
+const val notEqual5 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u !== 2u<!>
+const val notEqual6 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>uint !== 2u<!>
+const val notEqual7 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1 !== uint<!>
+const val notEqual8 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u !== uint<!>
+
+const val notEqual9 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>uint !== int<!>
+const val notEqual10 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>int !== uint<!>

compiler/testData/diagnostics/tests/constantEvaluator/constant/identityCompare.kt

@@ -0,0 +1,29 @@
+// WITH_STDLIB
+const val int = 456
+const val uint = 456U
+
+const val equal1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 === 2<!>
+const val equal2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>int === 2<!>
+const val equal3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 === int<!>
+const val equal4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>1u === int<!>
+
+const val equal5 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u === 2u<!>
+const val equal6 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>uint === 2u<!>
+const val equal7 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>1 === uint<!>
+const val equal8 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u === uint<!>
+
+const val equal9 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>uint === int<!>
+const val equal10 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>int === uint<!>
+
+const val notEqual1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 !== 2<!>
+const val notEqual2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>int !== 2<!>
+const val notEqual3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, DEPRECATED_IDENTITY_EQUALS!>1 !== int<!>
+const val notEqual4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>1u !== int<!>
+
+const val notEqual5 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u !== 2u<!>
+const val notEqual6 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>uint !== 2u<!>
+const val notEqual7 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>1 !== uint<!>
+const val notEqual8 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, FORBIDDEN_IDENTITY_EQUALS!>1u !== uint<!>
+
+const val notEqual9 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>uint !== int<!>
+const val notEqual10 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER, EQUALITY_NOT_APPLICABLE, FORBIDDEN_IDENTITY_EQUALS!>int !== uint<!>

compiler/testData/diagnostics/tests/constantEvaluator/constant/unsignedOperations.kt

@@ -0,0 +1,55 @@
+// FIR_IDENTICAL
+// WITH_STDLIB
+const val uint = 456U
+
+const val plus = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u + 2u<!>
+const val minus = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>2u - 1u<!>
+const val mul = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u * 2u<!>
+const val div = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u / 2u<!>
+
+const val rem = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u % 2u<!>
+const val floorDiv = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.floorDiv(2u)<!>
+const val mod = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.mod(2u)<!>
+
+const val increment = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.inc()<!>
+const val decrement = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.dec()<!>
+
+const val shl = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.shl(1)<!>
+const val shr = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.shr(1)<!>
+
+const val and = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.and(2u)<!>
+const val or = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.or(2u)<!>
+const val xor = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.xor(2u)<!>
+const val inv = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.inv()<!>
+
+const val toByte = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toByte()<!>
+const val toShort = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toShort()<!>
+const val toInt = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toInt()<!>
+const val toLong = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toLong()<!>
+const val toFloat = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toFloat()<!>
+const val toDouble = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toDouble()<!>
+
+const val toUByte = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toUByte()<!>
+const val toUShort = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toUShort()<!>
+const val toUInt = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toUInt()<!>
+const val toULong = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toULong()<!>
+
+const val toString = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toString()<!>
+
+const val stringPlus1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u.toString() + 2<!>
+const val stringPlus2 = "${1u} 2"
+const val stringPlus3 = "1" + 2u
+const val stringPlus4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>"1" + 2u.toString()<!>
+
+const val compare1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u < 2u<!>
+const val compare2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u <= 2u<!>
+const val compare3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u > 2u<!>
+const val compare4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u >= 2u<!>
+
+const val equal1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u == 1u<!>
+const val equal2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>uint == 1u<!>
+const val equal3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u == uint<!>
+
+const val notEqual1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u != 1u<!>
+const val notEqual2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>uint != 1u<!>
+const val notEqual3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1u != uint<!>