Existing tests for 'val reassignment' of function parameters fixed

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

@@ -169,25 +169,25 @@ public class PrimitiveTypesTest extends CodegenTestCase {
     }
 
     public void testPreDecrement() throws Exception {
-        loadText("fun foo(a: Int): Int { return --a;}");
+        loadText("fun foo(var a: Int): Int { return --a;}");
         final Method main = generateFunction();
         assertEquals(9, main.invoke(null, 10));
     }
 
     public void testPreIncrementLong() throws Exception {
-        loadText("fun foo(a: Long): Long = ++a");
+        loadText("fun foo(var a: Long): Long = ++a");
         final Method main = generateFunction();
         assertEquals(11L, main.invoke(null, 10L));
     }
 
     public void testPreIncrementFloat() throws Exception {
-        loadText("fun foo(a: Float): Float = ++a");
+        loadText("fun foo(var a: Float): Float = ++a");
         final Method main = generateFunction();
         assertEquals(2.0f, main.invoke(null, 1.0f));
     }
 
     public void testPreIncrementDouble() throws Exception {
-        loadText("fun foo(a: Double): Double = ++a");
+        loadText("fun foo(var a: Double): Double = ++a");
         final Method main = generateFunction();
         assertEquals(2.0, main.invoke(null, 1.0));
     }