Put code and data pieces in their own sections.

This makes --gc-sections perform better, as the GC operates on whole sections.  This makes a worthwhile binary size decrease in the Chromium Linux build.

Review URL: http://codereview.chromium.org/18803


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1164 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

SConstruct

@@ -52,7 +52,7 @@ LIBRARY_FLAGS = {
       'CPPDEFINES':   ['ENABLE_DISASSEMBLER', 'DEBUG']
     },
     'mode:release': {
-      'CCFLAGS':      ['-O3', '-fomit-frame-pointer']
+      'CCFLAGS':      ['-O3', '-fomit-frame-pointer', '-fdata-sections', '-ffunction-sections']
     },
     'os:freebsd': {
       'LIBS':         ['execinfo']