Reorder float and long to match instruction order, fix compilation

src/java.base/share/classes/java/lang/classfile/TypeKind.java

@@ -59,6 +59,7 @@
 public enum TypeKind {
     // Elements are grouped so frequently used switch ranges such as
     // primitives (boolean - double) and computational (int - void) are together.
+    // This also follows the order of typed opcodes
     // Begin primitive types
     /**
      * The primitive type {@code boolean}. Its {@linkplain ##computational-type
@@ -96,14 +97,14 @@ public enum TypeKind {
      * The primitive type {@code int}.
      */
     INT(1, 10),
-    /**
-     * The primitive type {@code float}.
-     */
-    FLOAT(1, 6),
     /**
      * The primitive type {@code long}. It is of {@linkplain #slotSize() category} 2.
      */
     LONG(2, 11),
+    /**
+     * The primitive type {@code float}.
+     */
+    FLOAT(1, 6),
     /**
      * The primitive type {@code double}. It is of {@linkplain #slotSize() category} 2.
      */

src/java.base/share/classes/jdk/internal/classfile/impl/DirectCodeBuilder.java

@@ -1436,7 +1436,7 @@ public CodeBuilder new_(ClassEntry clazz) {
     public CodeBuilder newarray(TypeKind typeKind) {
         int atype = typeKind.newarrayCode(); // implicit null check
         if (atype < 0)
-            throw new IllegalArgumentException("Illegal component type: " + typeKind.typeName());
+            throw new IllegalArgumentException("Illegal component type: ".concat(typeKind.upperBound().displayName()));
         writeNewPrimitiveArray(atype);
         return this;
     }