[test] Make cfi more verbose.

Set "no recover" in diagnostic mode to keep triggering
crashes. Otherwise, the v8 test driver won't notice tests
as failing.

Also port some common sanitizer cflags to cfi - those can be
removed on the build side afterwards.

BUG=chromium:515782
LOG=n

Review URL: https://codereview.chromium.org/1414763004

Cr-Commit-Position: refs/heads/master@{#31442}

build/standalone.gypi

@@ -492,8 +492,8 @@
       'target_defaults': {
         'conditions': [
           # Common options for AddressSanitizer, LeakSanitizer,
-          # ThreadSanitizer and MemorySanitizer.
-          ['asan==1 or lsan==1 or tsan==1 or msan==1', {
+          # ThreadSanitizer, MemorySanitizer and CFI builds.
+          ['asan==1 or lsan==1 or tsan==1 or msan==1 or cfi_vptr==1', {
             'target_conditions': [
               ['_toolset=="target"', {
                 'cflags': [
@@ -1275,7 +1275,7 @@
           ['_toolset=="target"', {
             'cflags': [
               '-fno-sanitize-trap=cfi',
-              '-fsanitize-recover=cfi',
+              '-fno-sanitize-recover=cfi',
             ],
             'cflags_cc!': [
               '-fno-rtti',
@@ -1285,7 +1285,7 @@
             ],
             'ldflags': [
               '-fno-sanitize-trap=cfi',
-              '-fsanitize-recover=cfi',
+              '-fno-sanitize-recover=cfi',
             ],
           }],
         ],