Implement "proper numeric comparisons" support in JVM BE

compiler/testData/codegen/box/ieee754/comparableToTWithTLV13.kt

@@ -0,0 +1,11 @@
+// LANGUAGE_VERSION: 1.3
+
+fun less(x: Comparable<Float>, y: Float) = x is Float && x < y
+fun less(x: Comparable<Double>, y: Double) = x is Double && x < y
+
+fun box(): String {
+    if (less(-0.0F, 0.0F)) return "Fail F"
+    if (less(-0.0, 0.0)) return "Fail D"
+
+    return "OK"
+}

compiler/testData/codegen/box/ieee754/nullableDoubleEqualsLV13.kt

@@ -0,0 +1,27 @@
+// LANGUAGE_VERSION: 1.3
+
+fun myEquals(a: Double?, b: Double?) = a == b
+
+fun myEquals1(a: Double?, b: Double) = a == b
+
+fun myEquals2(a: Double, b: Double?) = a == b
+
+fun myEquals0(a: Double, b: Double) = a == b
+
+
+fun box(): String {
+    if (!myEquals(null, null)) return "fail 1"
+    if (myEquals(null, 0.0)) return "fail 2"
+    if (myEquals(0.0, null)) return "fail 3"
+    if (!myEquals(0.0, 0.0)) return "fail 4"
+
+    if (myEquals1(null, 0.0)) return "fail 5"
+    if (!myEquals1(0.0, 0.0)) return "fail 6"
+
+    if (myEquals2(0.0, null)) return "fail 7"
+    if (!myEquals2(0.0, 0.0)) return "fail 8"
+
+    if (!myEquals0(0.0, 0.0)) return "fail 9"
+
+    return "OK"
+}

compiler/testData/codegen/box/ieee754/smartCastOnWhenSubjectAfterCheckInBranchLV13.kt

@@ -0,0 +1,25 @@
+// LANGUAGE_VERSION: 1.3
+
+fun testF(x: Any) =
+    when (x) {
+        !is Float -> "!Float"
+        0.0F -> "0.0"
+        else -> "other"
+    }
+
+fun testD(x: Any) =
+    when (x) {
+        !is Double -> "!Double"
+        0.0 -> "0.0"
+        else -> "other"
+    }
+
+fun box(): String {
+    val tf = testF(0.0F)
+    if (tf != "0.0") return "Fail 1: $tf"
+
+    val td = testD(0.0)
+    if (td != "0.0") return "Fail 2: $td"
+
+    return "OK"
+}

compiler/testData/codegen/box/ieee754/smartCastToDifferentTypesLV13.kt

@@ -0,0 +1,13 @@
+// LANGUAGE_VERSION: 1.3
+
+fun ne(x: Any, y: Any) = x is Double && y is Float && x != y
+fun lt(x: Any, y: Any) = x is Double && y is Float && x < y
+fun gt(x: Any, y: Any) = x is Double && y is Float && x > y
+
+fun box(): String {
+    if (ne(0.0, -0.0F)) return "fail 1"
+    if (lt(0.0, -0.0F)) return "fail 2"
+    if (gt(0.0, -0.0F)) return "fail 3"
+
+    return "OK"
+}

compiler/testData/codegen/box/ieee754/smartCastToDifferentTypesWithNumericPromotionLV13.kt

@@ -0,0 +1,76 @@
+// LANGUAGE_VERSION: 1.3
+// IGNORE_BACKEND: JS
+
+fun eqDI(x: Any?, y: Any?) = x is Double?   && y is Int?        && x == y
+fun eqDL(x: Any?, y: Any?) = x is Double?   && y is Long?       && x == y
+fun eqID(x: Any?, y: Any?) = x is Int?      && y is Double?     && x == y
+fun eqLD(x: Any?, y: Any?) = x is Long?     && y is Double?     && x == y
+fun eqFI(x: Any?, y: Any?) = x is Float?    && y is Int?        && x == y
+fun eqFL(x: Any?, y: Any?) = x is Float?    && y is Long?       && x == y
+fun eqIF(x: Any?, y: Any?) = x is Int?      && y is Float?      && x == y
+fun eqLF(x: Any?, y: Any?) = x is Long?     && y is Float?      && x == y
+
+fun testNullNull() {
+    if (!eqDI(null, null)) throw Exception()
+    if (!eqDL(null, null)) throw Exception()
+    if (!eqID(null, null)) throw Exception()
+    if (!eqLD(null, null)) throw Exception()
+    if (!eqFI(null, null)) throw Exception()
+    if (!eqFL(null, null)) throw Exception()
+    if (!eqIF(null, null)) throw Exception()
+    if (!eqLF(null, null)) throw Exception()
+}
+
+fun testNull0() {
+    if (eqDI(null, 0)) throw Exception()
+    if (eqDL(null, 0L)) throw Exception()
+    if (eqID(null, 0.0)) throw Exception()
+    if (eqLD(null, 0.0)) throw Exception()
+    if (eqFI(null, 0)) throw Exception()
+    if (eqFL(null, 0L)) throw Exception()
+    if (eqIF(null, 0.0F)) throw Exception()
+    if (eqLF(null, 0.0F)) throw Exception()
+}
+
+fun test0Null() {
+    if (eqDI(0.0, null)) throw Exception()
+    if (eqDL(0.0, null)) throw Exception()
+    if (eqID(0, null)) throw Exception()
+    if (eqLD(0L, null)) throw Exception()
+    if (eqFI(0.0F, null)) throw Exception()
+    if (eqFL(0.0F, null)) throw Exception()
+    if (eqIF(0, null)) throw Exception()
+    if (eqLF(0L, null)) throw Exception()
+}
+
+fun testPlusMinus0() {
+    if (!eqDI(-0.0, 0)) throw Exception()
+    if (!eqDL(-0.0, 0L)) throw Exception()
+    if (!eqID(0, -0.0)) throw Exception()
+    if (!eqLD(0L, -0.0)) throw Exception()
+    if (!eqFI(-0.0F, 0)) throw Exception()
+    if (!eqFL(-0.0F, 0L)) throw Exception()
+    if (!eqIF(0, -0.0F)) throw Exception()
+    if (!eqLF(0L, -0.0F)) throw Exception()
+}
+
+fun test01() {
+    if (eqDI(0.0, 1)) throw Exception()
+    if (eqDL(0.0, 1L)) throw Exception()
+    if (eqID(0, 1.0)) throw Exception()
+    if (eqLD(0L, 1.0)) throw Exception()
+    if (eqFI(0.0F, 1)) throw Exception()
+    if (eqFL(0.0F, 1L)) throw Exception()
+    if (eqIF(0, 1.0F)) throw Exception()
+    if (eqLF(0L, 1.0F)) throw Exception()
+}
+
+fun box(): String {
+    testNullNull()
+    testNull0()
+    test0Null()
+    testPlusMinus0()
+    test01()
+    
+    return "OK"
+}