[heap] Reland decrease large object limit for regular heap objects.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 100da7d766e86c8f57b7712b6216d0b72fc39dfa..9141cb9785ab8ca49ebecce9c07a6175f1d379e7 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -10093,9 +10093,13 @@ class JSArray: public JSObject {
   static const int kLengthOffset = JSObject::kHeaderSize;
   static const int kSize = kLengthOffset + kPointerSize;
 
-  // Note that Page::kMaxRegularHeapObjectSize puts a limit on
-  // permissible values (see the DCHECK in heap.cc).
-  static const int kInitialMaxFastElementArray = 100000;
+  // 600 * KB is the Page::kMaxRegularHeapObjectSize defined in spaces.h which
+  // we do not want to include in objects.h
+  // Note that Page::kMaxRegularHeapObjectSize has to be in sync with
+  // kInitialMaxFastElementArray which is checked in a DCHECK in heap.cc.
+  static const int kInitialMaxFastElementArray =
+      (600 * KB - FixedArray::kHeaderSize - kSize - AllocationMemento::kSize) /
+      kPointerSize;
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSArray);