DevTools: Dump function location when printing it in console and support inspect() for functions.

LayoutTests/inspector/console/console-format-expected.txt

 CONSOLE MESSAGE: line 20: test,test2,,,test4,,,,,
 CONSOLE MESSAGE: line 21: %o
 CONSOLE MESSAGE: line 22: %O
 CONSOLE MESSAGE: line 23: Test for zero "%f" in formatter
 CONSOLE MESSAGE: line 54: /^url\(\s*(?:(?:"(?:[^\\\"]|(?:\\[\da-f]{1,6}\s?|\.))*"|'(?:[^\\\']|(?:\\[\da-f]{1,6}\s?|\.))*')|(?:[!#$%&*-~\w]|(?:\\[\da-f]{1,6}\s?|\.))*)\s*\)/i
 CONSOLE MESSAGE: line 55: /^url\(\s*(?:(?:"(?:[^\\\"]|(?:\\[\da-f]{1,6}\s?|\.))*"|'(?:[^\\\']|(?:\\[\da-f]{1,6}\s?|\.))*')|(?:[!#$%&*-~\w]|(?:\\[\da-f]{1,6}\s?|\.))*)\s*\)/i
 CONSOLE MESSAGE: line 54: /foo\\bar\sbaz/i
 CONSOLE MESSAGE: line 55: /foo\\bar\sbaz/i
 CONSOLE MESSAGE: line 54: test
 CONSOLE MESSAGE: line 55: test
@@ skipping 69 matching lines @@
 [Error] console-format.html:55
 globals[4]
 Error {}
 <p id="p">Tests that console logging dumps proper messages.</p> console-format.html:54
 [p#p] console-format.html:55
 globals[5]
 <p id="p">Tests that console logging dumps proper messages.</p>
 function () { return 1; } console-format.html:54
 [function] console-format.html:55
 globals[6]
-function () { return 1; }
+function () { return 1; } console-format.html:31
 function () {
         return 2;
     } console-format.html:54
 [function] console-format.html:55
 globals[7]
 function () {
         return 2;
-    }
+    } console-format.html:32
 0.12 console-format.html:54
 [0.12] console-format.html:55
 globals[8]
 0.12
 http://webkit.org/ console-format.html:54
 ["http://webkit.org/"] console-format.html:55
 globals[9]
 "http://webkit.org/"
 null console-format.html:54
 [null] console-format.html:55
@@ skipping 45 matching lines @@
 [function () {}]
 Object {bar: "bar", foo: "foo"} console-format.html:54
 [Object] console-format.html:55
 globals[22]
 Object {bar: "bar", foo: "foo"}
 <svg id="svg-node"></svg> console-format.html:54
 [svg#svg-node] console-format.html:55
 globals[23]
 <svg id="svg-node"></svg>