8207146: Rename jdk.internal.misc.Unsafe::xxxObject to xxxReference

make/gensrc/GensrcVarHandles.gmk

src/hotspot/share/c1/c1_Compiler.cpp

src/hotspot/share/c1/c1_GraphBuilder.cpp

src/hotspot/share/c1/c1_LIRGenerator.cpp

src/hotspot/share/classfile/vmSymbols.cpp

src/hotspot/share/classfile/vmSymbols.hpp

src/hotspot/share/gc/g1/c2/g1BarrierSetC2.hpp

src/hotspot/share/opto/c2compiler.cpp

src/hotspot/share/opto/library_call.cpp

src/hotspot/share/prims/unsafe.cpp

src/java.base/share/classes/java/io/BufferedInputStream.java

src/java.base/share/classes/java/io/File.java

src/java.base/share/classes/java/io/ObjectStreamClass.java

src/java.base/share/classes/java/lang/Class.java

src/java.base/share/classes/java/lang/ClassLoader.java

src/java.base/share/classes/java/lang/invoke/CallSite.java

...base/share/classes/java/lang/invoke/ClassSpecializer.java

...se/share/classes/java/lang/invoke/DirectMethodHandle.java

...re/classes/java/lang/invoke/InvokerBytecodeGenerator.java

src/java.base/share/classes/java/lang/invoke/LambdaForm.java