[K2] Allow using simple boolean expressions in constant position

Such behavior is not the same as in K1, but it is more consistent.

#KT-64400 Fixed

compiler/testData/diagnostics/tests/modifiers/const/compare.fir.kt

@@ -0,0 +1,22 @@
+const val INT = 0
+const val LONG = 0L
+
+const val compareInt1 = 1 < 2
+const val compareInt2 = 1 <= 3
+const val compareInt3 = 1 > 4
+const val compareInt4 = 1 >= 5
+
+const val compareInt5 = INT < 2
+const val compareInt6 = INT <= 3
+const val compareInt7 = INT > 4
+const val compareInt8 = INT >= 5
+
+const val compareLong1 = 1L < 2L
+const val compareLong2 = 1L <= 3L
+const val compareLong3 = 1L > 4L
+const val compareLong4 = 1L >= 5L
+
+const val compareLong5 = LONG < 2L
+const val compareLong6 = LONG <= 3L
+const val compareLong7 = LONG > 4L
+const val compareLong8 = LONG >= 5L

compiler/testData/diagnostics/tests/modifiers/const/compare.kt

@@ -0,0 +1,22 @@
+const val INT = 0
+const val LONG = 0L
+
+const val compareInt1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1 < 2<!>
+const val compareInt2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1 <= 3<!>
+const val compareInt3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1 > 4<!>
+const val compareInt4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1 >= 5<!>
+
+const val compareInt5 = INT < 2
+const val compareInt6 = INT <= 3
+const val compareInt7 = INT > 4
+const val compareInt8 = INT >= 5
+
+const val compareLong1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1L < 2L<!>
+const val compareLong2 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1L <= 3L<!>
+const val compareLong3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1L > 4L<!>
+const val compareLong4 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1L >= 5L<!>
+
+const val compareLong5 = LONG < 2L
+const val compareLong6 = LONG <= 3L
+const val compareLong7 = LONG > 4L
+const val compareLong8 = LONG >= 5L

compiler/testData/diagnostics/tests/modifiers/const/equals_before.fir.kt

@@ -0,0 +1,46 @@
+// !LANGUAGE: -IntrinsicConstEvaluation
+
+const val equalsBoolean1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>true.equals(true)<!>
+const val equalsBoolean2 = false != true
+const val equalsBoolean3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>false.equals(1)<!>
+const val equalsBoolean4 = <!EQUALITY_NOT_APPLICABLE!>false == 1<!>
+
+const val equalsChar1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>'1'.equals('2')<!>
+const val equalsChar2 = '2' == '2'
+const val equalsChar3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>'1'.equals(1)<!>
+const val equalsChar4 = <!EQUALITY_NOT_APPLICABLE!>'1' == 1<!>
+
+const val equalsByte1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.toByte().equals(2.toByte())<!>
+const val equalsByte2 = 2.toByte() == 2.toByte()
+const val equalsByte3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.toByte().equals("1")<!>
+const val equalsByte4 = <!EQUALITY_NOT_APPLICABLE!>1.toByte() == "1"<!>
+
+const val equalsShort1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.toShort().equals(2.toShort())<!>
+const val equalsShort2 = 2.toShort() == 2.toShort()
+const val equalsShort3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.toShort().equals("1")<!>
+const val equalsShort4 = <!EQUALITY_NOT_APPLICABLE!>1.toShort() == "1"<!>
+
+const val equalsInt1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.equals(2)<!>
+const val equalsInt2 = 2 == 2
+const val equalsInt3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.equals("1")<!>
+const val equalsInt4 = <!EQUALITY_NOT_APPLICABLE!>1 == "1"<!>
+
+const val equalsLong1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1L.equals(2L)<!>
+const val equalsLong2 = 2L == 2L
+const val equalsLong3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1L.equals("1")<!>
+const val equalsLong4 = <!EQUALITY_NOT_APPLICABLE!>1L == "1"<!>
+
+const val equalsFloat1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.0f.equals(2.0f)<!>
+const val equalsFloat2 = 2.0f == 2.0f
+const val equalsFloat3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.0f.equals("1")<!>
+const val equalsFloat4 = <!EQUALITY_NOT_APPLICABLE!>1.0f == "1"<!>
+
+const val equalsDoable1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.0.equals(2.0)<!>
+const val equalsDoable2 = 2.0 == 2.0
+const val equalsDoable3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>1.0.equals("1")<!>
+const val equalsDoable4 = <!EQUALITY_NOT_APPLICABLE!>1.0 == "1"<!>
+
+const val equalsString1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>"someStr".equals("123")<!>
+const val equalsString2 = "someStr" == "otherStr"
+const val equalsString3 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>"someStr".equals(1)<!>
+const val equalsString4 = <!EQUALITY_NOT_APPLICABLE!>"someStr" == 1<!>

compiler/testData/diagnostics/tests/modifiers/const/equals_before.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // !LANGUAGE: -IntrinsicConstEvaluation
 
 const val equalsBoolean1 = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>true.equals(true)<!>

compiler/testData/diagnostics/tests/nonConstNotCall.fir.kt

@@ -0,0 +1,3 @@
+// ISSUE: KT-55196
+
+const val bb: Boolean = !false // Red in K1, green in K2

compiler/testData/diagnostics/tests/nonConstNotCall.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // ISSUE: KT-55196
 
 const val bb: Boolean = <!CONST_VAL_WITH_NON_CONST_INITIALIZER!>!false<!> // Red in K1, green in K2