Fix javaClass property for long and double

#KT-3046 Fixed

compiler/backend/src/org/jetbrains/jet/codegen/intrinsics/JavaClassProperty.java

@@ -44,13 +44,12 @@ public class JavaClassProperty implements IntrinsicMethod {
             StackValue receiver,
             @NotNull GenerationState state
     ) {
-        receiver.put(receiver.type, v);
         JvmPrimitiveType primitiveType = JvmPrimitiveType.getByAsmType(receiver.type);
         if (primitiveType != null) {
-            v.pop();
             v.getstatic(primitiveType.getWrapper().getAsmType().getInternalName(), "TYPE", "Ljava/lang/Class;");
         }
         else {
+            receiver.put(receiver.type, v);
             v.invokevirtual("java/lang/Object", "getClass", "()Ljava/lang/Class;");
         }
         return StackValue.onStack(AsmTypeConstants.getType(Class.class));

compiler/testData/codegen/regressions/kt3046.kt

@@ -0,0 +1,20 @@
+fun box(): String {
+  val bool = true
+  if (bool.javaClass != javaClass<Boolean>()) return "javaClass function on boolean fails"
+  val b = 1.toByte()
+  if (b.javaClass != javaClass<Byte>()) return "javaClass function on byte fails"
+  val s = 1.toShort()
+  if (s.javaClass != javaClass<Short>()) return "javaClass function on short fails"
+  val c = 'c'
+  if (c.javaClass != javaClass<Char>()) return "javaClass function on char fails"
+  val i = 1
+  if (i.javaClass != javaClass<Int>()) return "javaClass function on int fails"
+  val l = 1.toLong()
+  if (l.javaClass != javaClass<Long>()) return "javaClass function on long fails"
+  val f = 1.toFloat()
+  if (f.javaClass != javaClass<Float>()) return "javaClass function on float fails"
+  val d = 1.0
+  if (d.javaClass != javaClass<Double>()) return "javaClass function on double fails"
+
+  return "OK"
+}

compiler/tests/org/jetbrains/jet/codegen/StdlibTest.java

@@ -366,6 +366,10 @@ public class StdlibTest extends CodegenTestCase {
         blackBoxFile("regressions/kt2318.kt");
     }
 
+    public void testKt3046() {
+        blackBoxFile("regressions/kt3046.kt");
+    }
+
     public void testKt2246() {
         blackBoxFile("regressions/kt2246.kt");
     }