Fixes to luajc bytecode generation.

src/jse/org/luaj/vm2/luajc/LuaJC.java

@@ -105,11 +105,12 @@ public class LuaJC implements LuaCompiler {
 	
 	private static String toStandardJavaClassName( String luachunkname ) {
 		String stub = toStub( luachunkname );
-		String classname = stub.replace('/','.').replaceAll(NON_IDENTIFIER, "_");
-		int c = classname.charAt(0);
-		if ( c!='_' && !Character.isJavaIdentifierStart(c) )
-			classname = "_"+classname;
-		return classname;
+		StringBuffer classname = new StringBuffer();
+		for (int i = 0, n = stub.length(); i < n; ++i) {
+			final char c = stub.charAt(i);
+			classname.append((((i == 0) && Character.isJavaIdentifierStart(c)) || ((i > 0) && Character.isJavaIdentifierPart(c)))? c: '_');
+		}
+		return classname.toString();
 	}
 	
 	private static String toStandardLuaFileName( String luachunkname ) {

src/jse/org/luaj/vm2/luajc/ProtoInfo.java

@@ -26,13 +26,13 @@ public class ProtoInfo {
 	// A main chunk proto info.
 	public ProtoInfo(Prototype p, String name) {
 		// For the outer chunk, we have one upvalue which is the environment.
-		this(p,name,new UpvalInfo[] { new UpvalInfo() });
+		this(p,name,null);
 	}
 	
 	private ProtoInfo(Prototype p, String name, UpvalInfo[] u) {
 		this.name = name;
 		this.prototype = p;
-		this.upvals = u;
+		this.upvals = u != null? u: new UpvalInfo[] { new UpvalInfo(this) };
 		this.subprotos = p.p!=null&&p.p.length>0? new ProtoInfo[p.p.length]: null;
 		
 		// find basic blocks
@@ -364,6 +364,10 @@ public class ProtoInfo {
 					break;
 
 				case Lua.OP_JMP: /*	sBx	pc+=sBx					*/
+					a = Lua.GETARG_A( ins );
+					if (a > 0)
+						for ( --a; a<m; a++ )
+							v[a][pc] = VarInfo.INVALID;
 					break;
 	
 				default:

src/jse/org/luaj/vm2/luajc/UpvalInfo.java

@@ -13,9 +13,12 @@ public class UpvalInfo {
 	boolean rw;     // read-write
 
 	// Upval info representing the implied context containing only the environment.
-	public UpvalInfo() {
-		nvars = 1;
-		var = new VarInfo[] { VarInfo.PARAM(0) };
+	public UpvalInfo(ProtoInfo pi) {
+		this.pi = pi;
+		this.slot = 0;
+		this.nvars = 1;
+		this.var = new VarInfo[] { VarInfo.PARAM(0) };
+		this.rw = false;
 	}
 
 	public UpvalInfo(ProtoInfo pi, int pc, int slot) {