Fix test failure in interpreted regexp build.

R=mlippautz@chromium.org

Change-Id: Ic8628a2f9648a662447f4a6350f1466fe9ec69f2
Reviewed-on: https://chromium-review.googlesource.com/596969Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47069}

test/cctest/heap/test-heap.cc

@@ -1595,11 +1595,11 @@ TEST(TestSizeOfRegExpCode) {
   int initial_size = static_cast<int>(CcTest::heap()->SizeOfObjects());
 
   CompileRun("'foo'.match(reg_exp_source);");
-  CcTest::CollectAllGarbage();
+  CcTest::CollectAllAvailableGarbage();
   int size_with_regexp = static_cast<int>(CcTest::heap()->SizeOfObjects());
 
   CompileRun("'foo'.match(half_size_reg_exp);");
-  CcTest::CollectAllGarbage();
+  CcTest::CollectAllAvailableGarbage();
   int size_with_optimized_regexp =
       static_cast<int>(CcTest::heap()->SizeOfObjects());