Allow post ++, --

Fix eval auto-string result.  Fix tests hacked because of this.
Turn on BrainFuck in ch15,16,17, also disabled because of this.  Use new features in BrainFuck.
Fix bug not lifting forward refs; add a toString to Vars.
Fix some missing addDeps.
Remove large complex not-productive peep.
Upcast after "while" tests.  Improves a bunch of tests.
Remove dead getBlockStart.

3 files changed, 2 insertions, 3 deletions

diff --git a/chapter16/src/test/java/com/seaofnodes/simple/BrainFuckTest.java b/chapter16/src/test/java/com/seaofnodes/simple/BrainFuckTest.java
index f7c66bda..d5ffe835 100644
--- a/chapter16/src/test/java/com/seaofnodes/simple/BrainFuckTest.java
+++ b/chapter16/src/test/java/com/seaofnodes/simple/BrainFuckTest.java
@@ -12,7 +12,6 @@ import static org.junit.Assert.fail;
 
 public class BrainFuckTest {
 
-    @Ignore
     @Test
     public void testBrainfuck() {
         var program = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.".getBytes(StandardCharsets.UTF_8);
diff --git a/chapter16/src/test/java/com/seaofnodes/simple/Chapter15Test.java b/chapter16/src/test/java/com/seaofnodes/simple/Chapter15Test.java
index d2d60b34..8161862f 100644
--- a/chapter16/src/test/java/com/seaofnodes/simple/Chapter15Test.java
+++ b/chapter16/src/test/java/com/seaofnodes/simple/Chapter15Test.java
@@ -50,7 +50,7 @@ return output;
 """);
         StopNode stop = parser.parse().iterate();
         assertEquals("return [u8];", stop.toString());
-        assertEquals("Obj<[u8]>{#=1,[]=[1]}", Evaluator.evaluate(stop,  0).toString());
+        assertEquals("\u0001", Evaluator.evaluate(stop,  0).toString());
     }
 
     @Test
diff --git a/chapter16/src/test/java/com/seaofnodes/simple/evaluator/Evaluator.java b/chapter16/src/test/java/com/seaofnodes/simple/evaluator/Evaluator.java
index 28896283..c215de00 100644
--- a/chapter16/src/test/java/com/seaofnodes/simple/evaluator/Evaluator.java
+++ b/chapter16/src/test/java/com/seaofnodes/simple/evaluator/Evaluator.java
@@ -100,7 +100,7 @@ public class Evaluator {
         }
         @Override
         public String toString() {
-            if (struct._name.equals("u8[]")) {
+            if (struct._name.equals("[u8]")) {
                 var sb = new StringBuilder();
                 for (int i=struct._fields.length-1; i<fields.length; i++) {
                     var v = fields[i];