Support $0, $1, ... $6, inspect, and other console api methods.

LayoutTests/dart/inspector/debugger-eval-on-call-frame-expected.txt

Index: LayoutTests/dart/inspector/debugger-eval-on-call-frame-expected.txt
diff --git a/LayoutTests/dart/inspector/debugger-eval-on-call-frame-expected.txt b/LayoutTests/dart/inspector/debugger-eval-on-call-frame-expected.txt
index e79723420923ccd03fbbe8f2dd1b77bdea21242e..3fb5ea6deabe25fb97042aa086ebead3c148b06c 100644
--- a/LayoutTests/dart/inspector/debugger-eval-on-call-frame-expected.txt
+++ b/LayoutTests/dart/inspector/debugger-eval-on-call-frame-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE MESSAGE: line 1259: 
 Debugger was enabled.
 
 Running: testScopeChain
@@ -11,6 +12,16 @@ foo = "'': Error: line 2 pos 1: cannot access instance field 'foo' from a static
 foo
 ^"
 z = 10
+inspect(document.documentElement) = 
+inspect(document.body) = 
+inspect(document.body.children.first) = 
+$0.toString() = "body"
+$1.toString() = "body"
+$2.toString() = "html"
+$1 == document.body = true
+$1 == document.body = true
+$2 == document.documentElement = true
+dir([1,2,3,4,5]) = List[5]
 Script execution resumed.
 Debugger was disabled.