JVM optimize out temporary variables in bytecode

compiler/testData/codegen/bytecodeText/boxingOptimization/safeCallToPrimitiveEquality1.kt

@@ -0,0 +1,25 @@
+fun Long.id() = this
+
+fun Short.id() = this
+
+fun String.drop2() = if (length >= 2) subSequence(2, length) else null
+
+fun doSimple1(s: String?) = s?.length == 3
+
+fun doLongReceiver1(x: Long?) = x?.id() == 3L
+
+fun doShortReceiver1(x: Short?, y: Short) = x?.id() == y
+
+fun doIf1(s: String?) =
+        if (s?.length == 1) "A" else "B"
+
+fun doSimple2(s: String?) = 3 == s?.length
+
+fun doLongReceiver2(x: Long?) = 3L == x?.id()
+
+fun doShortReceiver2(x: Short?, y: Short) = y == x?.id()
+
+fun doIf2(s: String?) =
+        if (1 == s?.length) "A" else "B"
+
+// 0 valueOf