isPrimitiveNumberClassDescriptor() fixed to actually check the classes

compiler/backend/src/org/jetbrains/jet/codegen/CodegenUtil.java

@@ -17,6 +17,7 @@
 package org.jetbrains.jet.codegen;
 
 import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Sets;
 import com.intellij.openapi.util.Pair;
 import com.intellij.psi.PsiElement;
 import com.intellij.util.containers.Stack;
@@ -43,6 +44,7 @@ import org.jetbrains.jet.lang.resolve.java.JvmStdlibNames;
 import org.jetbrains.jet.lang.resolve.name.Name;
 import org.jetbrains.jet.lang.types.JetType;
 import org.jetbrains.jet.lang.types.lang.JetStandardClasses;
+import org.jetbrains.jet.lang.types.lang.JetStandardLibrary;
 
 import java.util.*;
 
@@ -70,6 +72,16 @@ public class CodegenUtil {
             .put(Visibilities.LOCAL, NO_FLAG_LOCAL)
             .build();
 
+    private static final Set<ClassDescriptor> PRIMITIVE_NUMBER_CLASSES = Sets.newHashSet(
+            JetStandardLibrary.getInstance().getByte(),
+            JetStandardLibrary.getInstance().getShort(),
+            JetStandardLibrary.getInstance().getInt(),
+            JetStandardLibrary.getInstance().getLong(),
+            JetStandardLibrary.getInstance().getFloat(),
+            JetStandardLibrary.getInstance().getDouble(),
+            JetStandardLibrary.getInstance().getChar()
+    );
+
     private CodegenUtil() {
     }
 
@@ -326,6 +338,13 @@ public class CodegenUtil {
         return type.getSort() != Type.OBJECT && type.getSort() != Type.ARRAY;
     }
 
+    public static boolean isPrimitiveNumberClassDescriptor(DeclarationDescriptor descriptor) {
+        if (!(descriptor instanceof ClassDescriptor)) {
+            return false;
+        }
+        return PRIMITIVE_NUMBER_CLASSES.contains(descriptor);
+    }
+
     public static Type correctElementType(Type type) {
         String internalName = type.getInternalName();
         assert internalName.charAt(0) == '[';

compiler/backend/src/org/jetbrains/jet/codegen/ExpressionCodegen.java

@@ -2462,16 +2462,6 @@ public class ExpressionCodegen extends JetVisitor<StackValue, StackValue> implem
         return StackValue.onStack(exprType);
     }
 
-    private static boolean isPrimitiveNumberClassDescriptor(DeclarationDescriptor descriptor) {
-        if (!(descriptor instanceof ClassDescriptor)) {
-            return false;
-        }
-        String className = descriptor.getName().getName();
-        return className.equals("Int") || className.equals("Long") || className.equals("Short") ||
-               className.equals("Byte") || className.equals("Char") || className.equals("Float") ||
-               className.equals("Double");
-    }
-
     private static boolean isClass(DeclarationDescriptor descriptor, String name) {
         if (!(descriptor instanceof ClassDescriptor)) {
             return false;