8331118: Remove Serial includes from space.hpp

Reviewed-by: gli, tschatzl

Author: albertnetymk

src/hotspot/share/gc/epsilon/epsilonMemoryPool.cpp

@@ -25,6 +25,7 @@
 #include "precompiled.hpp"
 #include "gc/epsilon/epsilonHeap.hpp"
 #include "gc/epsilon/epsilonMemoryPool.hpp"
+#include "gc/shared/gc_globals.hpp"
 
 EpsilonMemoryPool::EpsilonMemoryPool(EpsilonHeap* heap) :
         CollectedMemoryPool("Epsilon Heap",

src/hotspot/share/gc/serial/tenuredGeneration.hpp

@@ -27,11 +27,11 @@
 
 #include "gc/serial/cSpaceCounters.hpp"
 #include "gc/serial/generation.hpp"
+#include "gc/serial/serialBlockOffsetTable.hpp"
 #include "gc/shared/generationCounters.hpp"
 #include "gc/shared/space.hpp"
 #include "utilities/macros.hpp"
 
-class SerialBlockOffsetTable;
 class CardTableRS;
 class ContiguousSpace;
 

src/hotspot/share/gc/serial/tenuredGeneration.inline.hpp

@@ -26,7 +26,6 @@
 #define SHARE_GC_SERIAL_TENUREDGENERATION_INLINE_HPP
 
 #include "gc/serial/tenuredGeneration.hpp"
-
 #include "gc/shared/space.hpp"
 
 inline size_t TenuredGeneration::capacity() const {

src/hotspot/share/gc/shared/space.hpp

@@ -35,21 +35,13 @@
 #include "runtime/mutexLocker.hpp"
 #include "utilities/align.hpp"
 #include "utilities/macros.hpp"
-#if INCLUDE_SERIALGC
-#include "gc/serial/serialBlockOffsetTable.hpp"
-#endif
 
 // A space is an abstraction for the "storage units" backing
 // up the generation abstraction. It includes specific
 // implementations for keeping track of free and used space,
 // for iterating over objects and free blocks, etc.
 
 // Forward decls.
-class ContiguousSpace;
-class Generation;
-class ContiguousSpace;
-class CardTableRS;
-class DirtyCardToOopClosure;
 class GenSpaceMangler;
 
 // A space in which the free area is contiguous.  It therefore supports