More tests.

I really need to sort out some test automation.

tools/qfcc/test/dead-block.r

@@ -0,0 +1,7 @@
+integer dead_block (integer x)
+{
+	if (x)
+		return 4;
+	else
+		return 6;
+}

tools/qfcc/test/redefined.r

@@ -0,0 +1,2 @@
+@extern integer x;
+integer x;

tools/qfcc/test/super.r

@@ -0,0 +1,14 @@
+void __obj_exec_class (obj_module_t *msg) = #0;
+
+@interface Foo
+-init;
+@end
+
+@interface Bar : Foo
+@end
+
+@implementation Bar
+-init
+{
+	return [super init];
+}