Remove inessential functions from the JS Script class

test/mjsunit/mirror-script.js

Index: test/mjsunit/mirror-script.js
diff --git a/test/mjsunit/mirror-script.js b/test/mjsunit/mirror-script.js
index ed0dd12acea3c5c1f327b13a203889b762a11849..7e3891a9f75285b41acca7953b52bea476dde6da 100644
--- a/test/mjsunit/mirror-script.js
+++ b/test/mjsunit/mirror-script.js
@@ -83,16 +83,7 @@ function testScriptMirror(f, file_name, file_lines, type, compilation_type,
 
 
 // Test the script mirror for different functions.
-testScriptMirror(function(){}, 'mirror-script.js', 99, 2, 0);
+testScriptMirror(function(){}, 'mirror-script.js', 90, 2, 0);
 testScriptMirror(Math.abs, 'native math.js', -1, 0, 0);
 testScriptMirror(eval('(function(){})'), null, 1, 2, 1, '(function(){})', 87);
 testScriptMirror(eval('(function(){\n  })'), null, 2, 2, 1, '(function(){\n  })', 88);
-
-// Test taking slices of source.
-var mirror = debug.MakeMirror(eval('(function(){\n  1;\n})')).script();
-assertEquals('(function(){\n', mirror.sourceSlice(0, 1).sourceText());
-assertEquals('  1;\n', mirror.sourceSlice(1, 2).sourceText());
-assertEquals('})', mirror.sourceSlice(2, 3).sourceText());
-assertEquals('(function(){\n  1;\n', mirror.sourceSlice(0, 2).sourceText());
-assertEquals('  1;\n})', mirror.sourceSlice(1, 3).sourceText());
-assertEquals('(function(){\n  1;\n})', mirror.sourceSlice(0, 3).sourceText());