Add turbocheck Makefile target.

Makefile

Index: Makefile
diff --git a/Makefile b/Makefile
index e96362e0ca1008c2c976bcb6786a7dd8041b898e..3b02f52d2ad65d1d8ea554e6896597db43113bbf 100644
--- a/Makefile
+++ b/Makefile
@@ -257,7 +257,7 @@ NACL_CHECKS = $(addsuffix .check,$(NACL_BUILDS))
 ENVFILE = $(OUTDIR)/environment
 
 .PHONY: all check clean builddeps dependencies $(ENVFILE).new native \
-        qc quickcheck $(QUICKCHECKS) \
+        qc quickcheck $(QUICKCHECKS) turbocheck \
         $(addsuffix .quickcheck,$(MODES)) $(addsuffix .quickcheck,$(ARCHES)) \
         $(ARCHES) $(MODES) $(BUILDS) $(CHECKS) $(addsuffix .clean,$(ARCHES)) \
         $(addsuffix .check,$(MODES)) $(addsuffix .check,$(ARCHES)) \
@@ -386,6 +386,15 @@ quickcheck: $(subst $(COMMA),$(SPACE),$(FASTCOMPILEMODES))
 	    --arch-and-mode=$(FASTTESTMODES) $(TESTFLAGS) --quickcheck
 qc: quickcheck
 
+turbocheck: $(subst $(COMMA),$(SPACE),$(FASTCOMPILEMODES))
+	tools/run-tests.py $(TESTJOBS) --outdir=$(OUTDIR) \
+	    --arch-and-mode=$(SUPERFASTTESTMODES) $(TESTFLAGS) \
+	    --quickcheck --variants=turbofan --download-data mozilla webkit
+	tools/run-tests.py $(TESTJOBS) --outdir=$(OUTDIR) \
+	    --arch-and-mode=$(FASTTESTMODES) $(TESTFLAGS) \
+	    --quickcheck --variants=turbofan
+tc: turbocheck
+
 # Clean targets. You can clean each architecture individually, or everything.
 $(addsuffix .clean, $(ARCHES) $(ANDROID_ARCHES) $(NACL_ARCHES)):
 	rm -f $(OUTDIR)/Makefile.$(basename $@)*