A64: Synchronize with r18147.

Makefile

Index: Makefile
diff --git a/Makefile b/Makefile
index aa0893bae1c4c03769aa4adb0a9ab0e4cd706c10..7c9d9defcc7c4228c669deadf999ea6e927375e1 100644
--- a/Makefile
+++ b/Makefile
@@ -94,7 +94,7 @@ ifeq ($(vtunejit), on)
 endif
 # optdebug=on
 ifeq ($(optdebug), on)
-  GYPFLAGS += -Dv8_optimized_debug=1
+  GYPFLAGS += -Dv8_optimized_debug=2
 endif
 # debuggersupport=off
 ifeq ($(debuggersupport), off)
@@ -350,6 +350,16 @@ native.check: native
 	@tools/run-tests.py $(TESTJOBS) --outdir=$(OUTDIR)/native \
 	    --arch-and-mode=. $(TESTFLAGS)
 
+FASTTESTFLAGS = --flaky-tests=skip --slow-tests=skip --pass-fail-tests=skip \
+                --variants=default,stress
+FASTTESTMODES = ia32.release,x64.release,ia32.debug,x64.debug,arm.debug
+
+quickcheck:
+	@$(MAKE) all optdebug=on; \
+	tools/run-tests.py $(TESTJOBS) --outdir=$(OUTDIR) \
+	    --arch-and-mode=$(FASTTESTMODES) $(FASTTESTFLAGS) $(TESTFLAGS)
+qc: quickcheck
+
 # Clean targets. You can clean each architecture individually, or everything.
 $(addsuffix .clean, $(ARCHES) $(ANDROID_ARCHES) $(NACL_ARCHES)):
 	rm -f $(OUTDIR)/Makefile.$(basename $@)