Use the correct soname when linking together the preparser shared lib.

[I've accidentally lost my gcl_info directory and I see no way to commit the old CL, so I simply deleted the old CL opened a new one. :-P ]
Review URL: http://codereview.chromium.org/7210012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8332 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

SConstruct

@@ -1372,9 +1372,11 @@ def BuildSpecific(env, mode, env_overrides, tools):
     pdb_name = library_name + '.dll.pdb'
     library = env.SharedLibrary(library_name, object_files, PDB=pdb_name)
     preparser_pdb_name = preparser_library_name + '.dll.pdb';
+    preparser_soname = 'lib' + preparser_library_name + '.so';
     preparser_library = env.SharedLibrary(preparser_library_name,
                                           preparser_files,
-                                          PDB=preparser_pdb_name)
+                                          PDB=preparser_pdb_name,
+                                          SONAME=preparser_soname)
   context.library_targets.append(library)
   context.library_targets.append(preparser_library)