Update NSS to 3.36.4-RTM

security/nss/coreconf/config.gypi

@@ -105,6 +105,7 @@
     'sign_libs%': 1,
     'use_pprof%': 0,
     'ct_verif%': 0,
+    'emit_llvm%': 0,
     'nss_public_dist_dir%': '<(nss_dist_dir)/public',
     'nss_private_dist_dir%': '<(nss_dist_dir)/private',
     'only_dev_random%': 1,
@@ -431,6 +432,10 @@
               'LIBRARY_SEARCH_PATHS': ['/usr/lib <(sanitizer_flags)'],
             },
           }],
+          [ 'emit_llvm==1', {
+            'cflags': ['-flto'],
+            'ldflags': ['-flto', '-fuse-ld=gold', '-Wl,-plugin-opt=save-temps'],
+          }],
           [ 'OS=="android" and mozilla_client==0', {
             'defines': [
               'NO_SYSINFO',