[Interpreter] Add bytecode aging and use it enable CompilationCache for bytecode

src/builtins/ppc/builtins-ppc.cc

Index: src/builtins/ppc/builtins-ppc.cc
diff --git a/src/builtins/ppc/builtins-ppc.cc b/src/builtins/ppc/builtins-ppc.cc
index 8f3ef4297b35f5915dc1558ec3e827ea7f6df2c5..314665a4a636fcf2ace6b9e78d776b7bcc60c7c8 100644
--- a/src/builtins/ppc/builtins-ppc.cc
+++ b/src/builtins/ppc/builtins-ppc.cc
@@ -1055,6 +1055,12 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
     __ Assert(eq, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
   }
 
+  // Reset code age.
+  __ mov(r8, Operand(BytecodeArray::kNoAgeBytecodeAge));
+  __ StoreByte(r8, FieldMemOperand(kInterpreterBytecodeArrayRegister,
+                                   BytecodeArray::kBytecodeAgeOffset),
+               r0);
+
   // Load initial bytecode offset.
   __ mov(kInterpreterBytecodeOffsetRegister,
          Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));