Fix messages tests.

Change tests so that message location is stable under --debug-code.

R=yangguo@chromium.org
BUG=v8:3744
LOG=N

Review URL: https://codereview.chromium.org/792563003

Cr-Commit-Position: refs/heads/master@{#25732}

test/message/message.status

@@ -30,9 +30,4 @@
   # All tests in the bug directory are expected to fail.
   'bugs/*': [FAIL],
 }],  # ALWAYS
-['no_snap == True', {
-  # BUG(3744)
-  'super-constructor': [PASS,FAIL],
-  'super-constructor-extra-statement': [PASS,FAIL],
-}],
 ]

test/message/super-constructor-extra-statement.js

@@ -12,4 +12,4 @@ class C {
   }
 }
 
-new C();
+var c = new C();

test/message/super-constructor-extra-statement.out

@@ -5,4 +5,4 @@
     var x;
     
 TypeError: A 'super' constructor call may only appear as the first statement of a function, and its arguments may not access 'this'. Other forms are not yet supported.
-    at *%(basename)s:15:1
+    at *%(basename)s:15:9

test/message/super-constructor.js

@@ -11,4 +11,4 @@ class C {
   }
 }
 
-new C();
+var c = new C();

test/message/super-constructor.out

@@ -5,4 +5,4 @@
     super(this.x);
      
 TypeError: A 'super' constructor call may only appear as the first statement of a function, and its arguments may not access 'this'. Other forms are not yet supported.
-    at *%(basename)s:14:1
+    at *%(basename)s:14:9