Ensure type of a stack value is coerced to the expected return type after the binary operation instruction with the different return type.

compiler/testData/codegen/box/binaryOp/longOverflow.kt

@@ -1,5 +0,0 @@
-fun box(): String {
-    val a: Long = 2147483647 + 1
-    if (a != -2147483648L) return "fail: in this case we should add to ints and than cast the result to long - overflow expected"
-    return "OK"
-}

compiler/testData/codegen/box/binaryOp/overflowChar.kt

@@ -0,0 +1,10 @@
+fun box(): String {
+    val c1: Char = 0.toChar()
+    val c2 = c1 - 1
+    if (c2 < c1) return "fail: 0.toChar() - 1 should overflow to positive."
+
+    val c3 = c2 + 1
+    if (c3 > c2) return "fail: FFFF.toChar() + 1 should overflow to zero."
+
+    return "OK"
+}

compiler/testData/codegen/box/binaryOp/overflowInt.kt

@@ -0,0 +1,11 @@
+fun box(): String {
+    val i1: Int = Int.MAX_VALUE
+    val i2 = i1 + 1
+    if (i2 > i1) return "fail: Int.MAX_VALUE + 1 should overflow to negative."
+
+    val i3: Int = Int.MIN_VALUE
+    val i4 = i3 - 1
+    if (i4 < i3) return "fail: Int.MIN_VALUE - 1 should overflow to positive."
+
+    return "OK"
+}

compiler/testData/codegen/box/binaryOp/overflowLong.kt

@@ -0,0 +1,14 @@
+fun box(): String {
+    val a: Long = 2147483647 + 1
+    if (a != -2147483648L) return "fail: in this case we should add to ints and than cast the result to long - overflow expected"
+
+    val l1 = Long.MAX_VALUE
+    val l2 = l1 + 1
+    if (l2 > l1) return "fail: Long.MAX_VALUE + 1 should overflow to negative."
+
+    val l3 = Long.MIN_VALUE
+    val l4 = l3 - 1
+    if (l4 < l3) return "fail: Long.MIN_VALUE - 1 should overflow to positive."
+
+    return "OK"
+}